Both of my drysuits have been DC Ultraflex Pro, so I can't answer questions about the Pinnacle, just about my experience with Diving Concepts.
TSandM:
The Apeks valve is one of the things that concerns me -- I'd prefer Sitech, but maybe I can get that done since the suit will be custom anyway.
If they offer the SiTech valve, you should be able to request it.
The 'new' suit I have has the low profile forarm dump - it is not adjustable or closeable. I was pretty skeptical about it at first, but now that I'm used to it, I pretty much like it. If I had a choice though, I would get the Si-tech adjustable exhaust valve.
TSandM:
The shop that deals them told me the Pinnacle was available as a front entry/telescoping torso suit. I have the DC brochure which is brand new, so I'm pretty sure the information I have is up to date.
Why does the torso need to be telescoping? That always seemed like an air-trapping feature to me?
The front entry suit I'm using now is not telescoping. But the newer zipper design that has it unzipping all the way over the shoulder allows me to easily don and doff the suit.
Personally, I prefer as little bulkiness as possible.
TSandM:
I'm particularly interested in whether there's enough upper body mobility to reach valves.
That is primarily a function of the
fit of the undergarment, suit and harness. If you have a telescoping suit with a restriction in the armpit area, you will not be able to reach your valves.
You've seen my current DC front-entry, non-telescoping suit... It fits well enough so I can reach valves.
As for custom. I have experienced and heard even more horror stories about Diving Concepts and custom suits. My first one was custom.... after being sent back 3 times for re-fitting (it was gone a full month or more each time) it's better, but still doesn't fit right.
The current suit was the one I got on ebay for $300. It was a custom suit for a woman in CA. It didn't even come close to fitting her.... Turns out it fits me WAY better than the custom suit I spent over $2K for
I have both talked to personally and read the stories of others with the same fit issues with DC suits. One instructor gal who's an occasional buddy in AK was actually told by the DC rep at DEMA something like, "You obviously don't know how a drysuit is supposed to fit. We think the suit fits you just fine." :11: She now uses DUI suits.