hi Rikki, don't know which version of styleworks you have, but you can assign yamaha intros/endings 2 and 3 to the 2 technics intros endings slots, and also choose which fills to use. The fills can be saved twice to get all 4 and then use the single composer load to spread the other 2 across the 8 technics fills slots, this of course because styleworks is still saving in 5000 format.
I always regarded the yamaha 3 intros/endings as a bit of a joke since the number 1 was always invariably 4 taps on a cymbal and just a simple single chord as the ending, not really comparable with the technics as you say.