DementialFaith,
BC lift is not your problem. The size small ProQD has 30lbs of lift. It should be plenty of lift for single tank diving.
You weigh 105 lbs...it's time for the gym and all-you-can-eat buffet lines
. 30lbs is definitely too much lead for someone of your size.
You mentioned that the size of your ProQD is "small". It's too big for you. If I recall correctly, the SQ size small BCs are designed to fit divers in the 130~150lbs range. Result: trapped air ... more lead. If your drysuit does not fit you well, the problem becomes compounded.
See if you can find someone trade to your size small BC for a XS, and work on significantly reducing the amount of lead you wear. I use 18lbs with a 7mm wetsuit and jetfins (I am about 5 lbs. overweighted at the beginning of the dive, because I am weighted to be neutral at the end of the dive).
BC lift is not your problem. The size small ProQD has 30lbs of lift. It should be plenty of lift for single tank diving.
You weigh 105 lbs...it's time for the gym and all-you-can-eat buffet lines

You mentioned that the size of your ProQD is "small". It's too big for you. If I recall correctly, the SQ size small BCs are designed to fit divers in the 130~150lbs range. Result: trapped air ... more lead. If your drysuit does not fit you well, the problem becomes compounded.
See if you can find someone trade to your size small BC for a XS, and work on significantly reducing the amount of lead you wear. I use 18lbs with a 7mm wetsuit and jetfins (I am about 5 lbs. overweighted at the beginning of the dive, because I am weighted to be neutral at the end of the dive).