Hi Jon, I've heard that artificial scents can scare fish, but I haven't seen any proof. I use whatever is cheapest. For all I know, these scents might attract fish! All I know is that if I can't get my suit on then I'm not going to see ANY fish(LOL).
The Henderson suits are made from the same Yamamoto 45 rubber(Neoprene is a brand name) and have the same metal spray. The main difference, I think, is the design and cut of the suits. Picasso suits are cut for bends in the arm, etc., and as you know have an attached hood and no zippers. I have the Hombra Termic in a 5mm suit. It is without a doubt the only wetsuit I will ever wear. Last weekend diving season opened in the mountains near where I live. Ice just came off the lake and it was snowing(Altitude 5000', water temp 2 to 4 celsius...about 35 to 39 F). Drysuit divers were in and out in 30 minutes. I spent an hour fdiving to -65'with a 9lb belt before I got cold. I also have 5mm Termic socks...my feet were very warm. The only parts of me that got cold earlier were my hands, which were covered with another brand of 5mm gloves.
Apparently the Hombra is being discontinued for a slightly different model. Mine cost 558 US$, which works out to 809Can$, but it was money well spent. Roger Yazbeck phoned me at home to make sure everything was correct on my order...very pleasant and proffesional. I needed a semi- custom suit(52 long) which he did not charge me the extra 10% for. Also, I paid no freight, duty, or GST(7% federal tax), so there were no surprises. Funny, I just sent in a Viking to get a new zipper installed, so I guess I'll be paying that off too! Cheers, Erik