Hi Max,
This is Kathy Long with DUI - Diving Unlimited. I came across your post. First off congratulations on your ever expanding diving. That's awesome.
On the things listed of importance. I agree with the comment on ease of deflation. The Si-Tech and Apeks exhaust valves are so close either is a great choice.
Trim & Fit. Trim is different in a drysuit from a wetsuit. Legs have more insulation on them in a drysuit and tend to be lighter. Learning how best to adjust weights will go a long way here on the trim.
Fit is crucial. First off, for comfort. A great fitting drysuit will be comfortable to wear. If the opportunity to try on suits is available take the time to go through range of motion exercises with the thickest insulation you will be wearing. Can you life the knee up easily? Reach valves? Sit on your knees and relax. Do you have enough room? Not only is this for comfort it is also for safety. Could you reach for a climb a ladder no matter the water conditions?
The seals are all about same so they will all fit/feel similar. Silicone has more stretch and most people say it feels more comfortable to wear.
A well made drysuit will last a long time.
Depending on the drysuit style a plastic zipper may not be an option. Take good care of the waterproof zipper and follow manufacturers instructions.
On the fit - we make stock standard drysuits which come in a range of sizes from regular, short and tall We also make made-to-measure/custom drysuits. From the time we receive the complete order at the factory to time it goes out the door is 3 weeks or less.
DUI has a few rental centers around... although I don't think these will work for you in Florida. Information is up at
DUI DRYSUIT RENTAL CENTERS - be warm while scuba diving
Good luck on your search.
Kathy