I've been thinking for ages about trying to get my system slightly more neutral for macro. With the 2x Retras I have just bought I reckon it's about 600gms negatively buoyant. That is with 2x 5" arms and 2x 8" arms fitted with a total of 8x Jumbo Stix floats which give about 1400 gms of positive buoyancy.
I'm wondering about switching it from 2x 5" and 2x 8" arms to 4x 8" which would allow me to add 2x Stix Jumbos - an extra 360gms of buoyancy. Not ideal though. A bit more would be better but I'm not sure where I can put additional Stix. I don't want to use a collar.
Hmmmm