It's pretty simple to do the set up jake is talking about:
Take a fid to the center of the spin sheet.
Pass the 3mm dyneema through the core.
Wrap the 3mm dyneema around the core a couple times.
Pass the 3mm dyneema through the core in the same direction as the first pass.
Bury the tails / splice together into one another for a foot to 18" depending on your boat and how close the clew gets to your blocks.

Tie the trail onto the clew of the spinnaker where the tails are spliced together.

You can tie the ends of the spinnaker sheet together on the tramp, splice them together, or criss cross them with a shockcord under the tramp, all personal preference.