Tom-
If anybody knows how to make center sheeting work, AHPC does- it's a common setup in AUS apparently- my Taipan (1997 model and was Greg's personal "demo" before I got it) came with it, and the tramp on a (stock) Taipan is considerably more crowded than any of the new F16's due to narrower boat and jib that sheets to tramp. The center sheeting boom is larger diameter, tramps come w/ reinforcing and grommet for just that purpose. It IS very different from rear sheeting however as you pass "through" the "window" between the mainsheet blocks at stern and blocks that lead down to center-sheeting. Another option is to put the last block on the boom itself, rather than running down to the tramp, and some Taipan sailors have done that, all depends on what feels more comfortable to you. Center sheeting very popular in "A" class (but no crew to worry about there!).

Kirt