Willie,
Thanks for asking for clarification about my using #7-B on my bike at ECTA last meet to make sure I wouldn't have problems if I tried to run it elsewhere. As Deb said I only get to use it at Maxton and on all my paperwork I still include my official LSR #9688 in parentheses to avoid confusion later. I have only been doing LSR for 3 years and I was thrilled to earn 7th in the points last year with this bike that I constructed. So I rewarded myself with putting the number on the bike for this year. My main goal has been earning records and now increasing the speeds of those records. But the points chase does put a twist on the timing of the attempts since there are no longer any open records for an Altered 250-4 stroke bike.
Boy this LSR total package thing (designing, building, tuning, and running it) is even more fun than the previous bike competition thing I did- AMA Desert Racing my Honda SL100 in California in 1972-77. Oops, my gray hair is showing.