QUOTE="bamafan, post: 7804988, member: 395256"]This is one of the advantages of sidemount diving over bm doubles. You can get a Kubi bacpack and carry 2 tanks at a time or you can carry one at a time. In Mexico, Dominican Republic and even some places in Florida the distance from the vehicle to the dive site is definitely not measured in feet. I have personally humped al 80's a lot farther into the jungle than 250 yards. I think it is a valid option and offers a lot more flexibility than dragging around a small pony bottle. Traveling with a pony bottle can be a pain but getting 2 tanks is always an option. Now if almost 160 cuft of gas isn't needed dive 40's or even 30's. As mentioned the lp50's are a great option but rarely are available for rent but for personal tanks on small dives they rock.[/QUOTE]
Not dis'n SM, but please keep OP's parameters in mind....petite gal, South Florida beach diving, solo....
So make two trips and on second trip your gear is gone....just sayin'
I don't see the benefit, BTW, of carrying tanks in a bag on my back vs. BM.
I think, as others have posted, that an AL63 back mounted is the way to go.
YMMV