Firstly..... why??
Do you intend the BCD to be 'future-proof'... allowing you to progress eventually into technical diving with the same equipment?
Do you just want to look like what you assume an advanced diver looks like?
The term 'recreational tech' is an absolute misnomer that exists only in the imagination of scuba industry marketing departments. It's an advertising trend that plays upon novice divers desire to look or feel more credible... through a proposed, but intangible, link with advanced/technical diving. Some/many of these companies add the letters 'tec' or 'tech' to the name of a BCD, that actually has no technical diving application or suitability whatsoever. More recently, I've noticed this same silly trend in respect to other scuba equipment items, such as fins, reels, wetsuits etc. Silliness.
'Tech-style'.. it's just nonsense from a practical perspective. Maybe nice for the fashionistas... if that's what's "en-vogue" this season...
A BCD is either suitable for technical diving, or it is not. Suitability, at a minimum, is determined by a capacity to bolt-mount adequately sized double tanks joined by an isolation valve, a capacity to sling 2, or more, stage deco tanks in a streamlined and secure manner..and a capacity to offer sufficient buoyancy whilst minimizing any risk of entanglement or entrapment. Generally, such designs also incorporate a priority in reducing unnecessary components and limiting, wherever possible, the occurrence of 'failure points' (things that can break and endanger the diver).
In contrast, most recreational BCDs marketed under the auspices of a connection with 'tech' feature few, or none, of these features.. or even worse, actually go against those principles (more complicated, rather than simpler... more bulky, rather than streamlined).
These 'faux-tec' BCDs are often provided with a multitude of superflous D-Rings, flappy straps, connections, pads, pockets, grommets, hoses, buckles and other shennanigans. Basically, the complete antithesis of technical diving needs.
In this respect, my advice is to absolutely disregard any claims or connotations made by scuba manufacturers in the product names, or descriptions, of their BCDs. Look past the marketing BS... and concentrate entirely on the actual features and capabilities of the BCD itself.
Of course, in order to do that - you'll first need to be fully cognizant of what features and capabilities you actually need, both now...and in the future. In order to understand this, you'll need to assess your diving.. and critically examine the skills, procedures and equipment that you are taught - in addition to specific activity requirements and environmental/conditional factors. You won't get the knowledge you need from reading scuba equipment advertisements (including many magazine/website 'reviews') that tell you what you want.
If you want a BCD that'll eventually be suitable for technical diving applications, then you should investigate BP&W (backplate and wing) BCDs. These are modular in design, with 3 main inter-changable components - backplates, harnesses and buoyancy cells (wings). In addition, you can add, remove and locate extra ancillary features wherever you need them (integrated weights, pockets etc).
Backplate. A metal backplate allows isolated doubles to be bolted on... or it can accept cam bands for single tank (recreational) diving.
Harness. There are choices of harness, ranging from minimalist (preferred by most in the tech community) to extravagant (lots of buckles and straps) like you'd find on a jacket BCD. The extravagant harnesses are typically only sold to extract more cash from novice BP&W diver who don't know better. The harness typically has 5 or 6 D-Rings... which is sufficient for any world record breaking deep dive, cave exploration etc.
Wing. Wings (buoyancy cells) are designed in various lift capacities and shapes... suitable for either single tank or double tank (but never both, regardless of what advertisers may claim) in a range of water conditions. Wings can be swapped over in less than 2 minutes (by removing 2 butterfly bolts), so the same backplate and harness can be used for a technical dive in doubles in the morning, then a single tank recreational dive in the afternoon. When you progress from recreational to technical, you keep the same backplate/harness and simply buy a wing that allows you to use doubles.
Most wings, harnesses and backplates are inter-changable between different BP&W manufacturers, so you really can tailor a configuration to your own requirements... picking and choosing exactly the right options to meet your needs. DSS, Oxycheq, Halcyon, OMS, Frog, DiveRite and Agir-Brok all make very good BP&W components.
You WON'T find a BCD that is ideal for either recreational or technical diving - but by sourcing a modular option, you can amend, refine and tailor your BCD as your future progress dictates your specific needs as a diver.
If you opt for a 'tech-style' jacket or hybrid BCD... you'll just be spending money on pointless features that won't particularly aid your diving, in order to pursue an 'image'. It won't help you develop equipment familiarity for later progression, nor will it offer any functionality that a tech diver would appreciate from their equipment.
