Thanks, found your post a few days later after posting. Followed your instructions and made the saw, I was able to drill out the fist two baffles in less than fifteen minutes.
Tried them on but was not happy with the sound, so I knocked out what was left of the 2nd baffle and drilled out the 3rd one. The third baffle came out fast, just let the tool do its work. What a difference in sound!
I purchased the bike used and it had supertrapp mufflers, which are 8 inches shorter than the original slash cut (paid $50 for an almost new set.
Now, I am reading up on jetting and I feel good about so I will check the size of jets I have in there and see what I need to replace them with.
Thanks to all the great articles here.