I think your arrows sound possibly weak... I used to shoot 2016's out of a 50# recurve with a B50 string, 125 grain tip, cut to 28" and they tuned perfectly. That much weight up front is going to clobber that spine...
case-in-point:
I am working on tuning woodies to my Savannah LB, 55# with FF material skinny string. Right now I am shooting 65/70 spine arrows cut to 30" BOP, 190 tips and reading weak. The arrow kicks right and high when shot. I spoke with a friend and he recommends cutting the arrow down to stiffen the spine and raise the nock. I know these arrows will tune to the bow b/c I had a previous set tuned.
I currently have 2117 (cut to 30" & 125 gr tips) and ACC 440 cut to about 30" with outserts and 200 gr tips flying nicely out of the set up.
Those arrows are pretty stiff and I get decent flight and good groups... even the woodies are doing OK inside 20 yards.
I think a stiffer arrow or less weight up front will help.