doubles

twin independents that is. but which ones?
in the following table, the column "tanks and weights" corresponds to the weight of the (empty) tanks plus all the weight i need when using my drysuit with light undergarments (one layer of fleece). at the moment i mainly use a 95 catalina 240bar (plus a luxfer 80) so that would be the more accurate estimate for the weight needed.

tank	capacity	pressure	cu ft	weight	b empty	tanks&weights 1	tanks&weights 2
faber	12.2 L	232 bar	100cf	13.5kg	+1kg	21kg (12lb lead)	34kg ?
faber	10.5 L	232 bar	85cf	10.4kg	+1kg	16kg (12lb lead)	26kg ?
catalina	11.1 L	207 bar	80cf	14.5kg	+2.6kg	24kg (18lb lead)	38kg ?
catalina	10 L	240 bar	85cf	--kg	+ ?? kg	??	??
catalina	11 L	240 bar	95cf	17kg	+1kg	23kg (12lb lead)	40kg

"tanks and weights 1" is for single tank, "tanks and weights 2" is for doubles with some effort to take into account the extra regs. i use this website to calculate buoyancy characteristics, so the numbers are not terribly accurate.