Jagfish and Cool,
Are you referring to the Carter 50 or 100 lbs lift bags, or the Carter Personal Floats which come in 35, 50, 75 and 110 lb lifts? The lift bags are the triangular ones and the Personal floats are the tubes of varying lengths and diameters.
I can't speak for the Lift Bags but the Persoanl Floats don't have anything I am aware of that is called an Auto Dump. What is that? Are you referring to the overpressure valve?
I have a 75 lb Carter Personal float and have no issues with it related to size or air dumping. They are the best on the market. Made of heavy duty material. The 35 and 50 lbs Floats are very managable in size. The 75 is as large as I would personally want to go but the big size has come in handy in high seas and the extra diameter really keeps it from bending in the wind. I store my 75 lb float in a Dive Rite Quick Draw sleave on the bottom of my plate. It is tight but it works. Out of the way and secure and i don't ever notice it until needed.
The relevant dimensions are:
CBPF35 - Lift=35 lbs, Filled=60"x5", Volume=0.5 CF, Rolled=7.25"x3"
CBPF50 - Lift=50 lbs, Filled=108"x5", Volume=0.8 CF, Rolled7.25"x3.5"
CBPF75 - Lift=75 lbs, Filled=78"x7", Volume=1.2 CF, Rolled=9.25"x3.5"
SPC110 - Lift=110 lbs, Filled=108"x7", Volume=1.7 CF, Rolled=9.5"x3.875"
These are the correct statistics. The ones on the Carter site are wrong. Jim Carter knows it but they haven't gotten around to changing it quite yet. Too busy making great bags I guess.
Order direct from
www.Carterbag.com or contact PhilEllis on Scuba Board if you want one. Great price and great service. His web site is :
http://www.divesports.com/IndexPages_Cat/accessories_sub_liftbags.htm
LJ