I dive 20 with a drysuit and my steel 100. Pull 6 for the plate, that means I need 14 - so I added 7 a side in the Halcyon ACB and I'm good.
I could have gone with a heavier plate and a weighted STA, but I like the peace of mind in being able to ditch weight. My very first dive after being certified, the inflator blew off of my rental BC...rapid (and I do mean rapid) gas loss. I jammed my finger into the hose, ditched my weight and made an ascent.
It sort of scarred me...I like having ditchable weight. I've read about people that don't wear any weight - they have doubles, heavy plates and channel weights... not for me. If I gotta get topside, I want to get lighter.
K