totally wrong.

VTEC and NON VTEC are the same spline count.

Hydro and 88-91 CABLE are different spline count.

You prob got a Cable SPline instead of HYDRO

If what yo usay was true, anytime someone switched trannys they would have to switch the clutch and i know thats not true. Ive put LS trannys in GSRs and Vice Versa.

Check it out:
B-Series

Stage 1 Clutch Kit - $269 shipped
Stage 2 Clutch Kit - $319 shipped
Stage 4 Clutch Kit - $385 shipped
Stage 5 Clutch Kit - $399 shipped
Ironman Series Clutch Kit - $449 shipped

Twin Disc - $1250 shipped

Thats ripped from CC site.