For what it's worth, I agree with both sides on the needle bearing conversion!? But I haven't done it. I have had two Trispark units fail on the Tbolt. Love the simplicity but apparently too much heat in the points hole. If the third one fails, I have a Boyer in a box.

69 A65T
71 B50T
85 K100RS
54/59 A10SR
69 B44VS
71 A65FS
95 Trident
Too much moderation is bad for you.