OK, the dirty deed is done!
WOW, I can't believe how smooth that starter sounds. It's been YEARS since I heard that, I had grown so accustomed to clackity clack bang clackity I just replaced the starter once a year.
VERY smooth sound, nice and quiet, BIG difference. Haven't tried it under lot's of advance with heat soak yet, not sure I will! I think I'll install a timing retard first and not even "go there" with my starter anymore. Smooth or not.