For the SF (not pro) IIRC it was 5 turns. The center of the cap bottom surface (supporting the limb) is aligned with the pocket edge (I hope this makes sense). Mr. Flute sent me a picture (pdf) when I asked this question. I may PM it to you if you wish (I do not know I may attach files though). Anyway I believe you are still on the safe side if the cap upper edge is under the stab bushing line (at least this was the indication in a drawing in KAP's manuals for similar risers).
HTH
Elder.