Just asking if there is any info or such as that on who makes the smallest wing and who makes the smallest or lightest BP. Why small and light--well for a mini dive rig for travel or easy carry. I see that DiveRite and Halycon make units in the 27/30 lb range but I wonder if there is anything in the 20 lb range (lift in lbs) or perhaps smaller? Any info or whatever is appreciated,thanks in advance. N