The three layers deep of #18 over all 10 poles is what I'd recommend to anyone that is in there doing a 400/600/650 stator and wants enough for a 60W headlight + 20W brake light and a bit left over for other things. The overall resistance is much lower than the #18 + #20 setup and so it is considerably more efficient. If you want I could probably type up a blurb for you to put up that tries to summarize what the winding choices are and which are the most efficient for what application and why. I don't think Fred did the big purge-o-matic of the group file section, so the stator simulator (and real world data) should still be there for other interested folks following this thread. [Oh - just realized this is justxr, the stator sim program is currently in the xr650r group file section, but I'll put it here too the next time I need to upload it again, since it covers all adult sized XRs.] Paul. >