@toby43 thanks a lot for your kind input on this; truly appreciated!
You make a very good point regarding sidemount vs. backmount (in the context of diving in Gozo). Indeed, that's a question that I spent a lot of time thinking about before even starting to consider wings, also because of the cost-saving that you mentioned.
Ultimately, I *think* (although, mind you, this is a close one to call!) I prefer to carry the cylinders on my back than making multiple trips carrying a cylinder at a time. If it were an occasional dive, I could do it, but if I'm diving regularly, going up and down all the way to the Blue Hole some three times just to carry the equipment... hmm, I'm not sure if it's the way I want to go
I have to admit that at times I'm still tempted though! Both have their advantages.
I think in the end, the approach I'm going to take is that I go backmount for most of the dives, but add on sidemount when I get started with cave diving, in which case I'd probably go for the X-Deep Stealth Tec or Hollis SMS 100.
For the time being, I'm still trying to decide between getting an OMS dual wing or the Hollis C45 or C60 Dual wing. The Tecline Donut 22 Special edition still beckons; pity it doesn't come in a dual-bladder version.
Argh... decisions, decisions!