DreadnoughtNH
Contributor
What happens if you completely stop finning? That's the acid test, both for buoyancy and trim. Lot's of folks have foot low trim because they are overweighted and when the stop, they sink. Stop finning and see if you're truly neutral and trimmed properly, then adjust from there.
That said, you're not far off, assuming that's your true natural trim, and you don't need to do too much.
As said earlier, hands forward will help as will bending your knees -- the latter will not only get your fins out of the dirt, it will bring them closer to your center of mass and, if your fins are heavy, it will decrease that effect because the moment arm will be smaller.
The RK3s are not what I would consider heavy fins, nor are they terrible negative, so I don't think that's the primary culprit, but bending the knees will help a lot. If the fins are 33% closer to your center of mass, that's 33% less impact they'll have on your trim.
If the posture changes aren't enough then try moving the cylinder up an inch or so. The valve and first stage are heavy and it can do wonders if you can't get trim with the posture change alone.
If none of that works, try taking 2lbs out of your integrated weights and put a 2lb weight in a trim weight pouch on the cam band.
Thanks for the input. Seems to be a consensus to put my arms further ahead; makes a lot of sense. Putting a shot of weight on the cam band and moving the tank up is not a bad idea either.
Thanks for the help! Much appreciated.