We tie the loose ends together with a fisherman's knot as well. We also have the ring from the clew that our retrieval line goes through that was discussed in another thread. That pulls the clew deep into the snuffer and eliminates a lot of the spin sheet slack. After each race I also gather up the excess sheet and stick it under the starboard hiking strap- keeps it nice and neat for one beat at least!

I sailed Tony's boat (I think) with the separate sheets in Thailand. Personally, I much prefer the continuous sheet.