Drysuit arrived. Looks pretty good. I actually dug around in my closet and found a Pinnacle "Bioply" suit I'd bought at some point along the line, intending to layer it under a 5 mil wetsuit for a little more thermal protection (and easier donning). It's a thin layer of lycra over a polypropyline fleece, about 1.5mm thick. Figured it might cut it as an insulator layer beneath compressed neoprene down to say 58-60deg. It was humid and 70 degs when I was trying everything on so it didn't feel like it was wicking the best - might add a layer of Underarmor (dryfit more or less) beneath.
Drysuit itself fits very well over this - nothing binding. Legs are a hair long (could probably remove about 1" length from them and still do a complete deep knee bend in it) but crotch-to-shoulder height is perfect, so don't think I could have changed sizes.
Neck/wrist seals were pretty tight - face got nice and red while trying on
, but going to try the lube-with-pure-silicone and stretch them (1 liter coke bottles for wrists, 2 liter for neck...don't have my own AL80 tank to use here) before I risk trimming back any. From what I've read that's a better recommendation for latex seals anyway. (Concurrance from the peanut gallery????)
Hoping to gear up and try it out in the pool in a week or so, get an initial feel for lead requirements.
Did look around for 4th element and also perused Scubatoys recently, but had already found the Pinnacle in the closet so didn't even try anything on. Will definitely remember recommendations though for later, thanks again for feedback!
Current rig: Sony SLT-alpha55 in Ikelite housing, Sigma 105mm f2.8 DC Macro w/ Ike 5505.58 flat port or Sigma 8-16mm f/4.5-5.6 DC HSM behind UWCamStuff custom 5" mini-dome. Dual INON z240 Type IVs triggered with DS51 for TTL mimicry, or DS51 alone with home-made ringflash assy for macro.
Topside, unhoused: Sony SLT-alpha99,
Sigma 150-500mm + 1.4TC (Saving for Sony 70-400 G2), Sigma 15mm diagonal fish, Sony 24-70mm f2.8 CZ, Tamron 180mm f2.8 Macro...all the gear and nary a clue...