While your writing, might I suggest adding 50cc to the 250cc two-stroke, bring it up to 300cc??
This will probably be a bit of back and forth before he even agrees to consider it.
One of the reasons will be because no one builds machines in these displacements, which of course is not true.
KTM builds a 150 and a 300cc MX Bike (well the 300 could be an mx bike really easily) TM Racing builds a 144 and 300 cc MX bike. Gas Gas builds a 300cc bike. Almost any Japanese bike can be modified to achieve this displacement.
Of course you could mention (in follow up letters) that we could circulate a petition if they'd like. Or we could even host a survey.
I would also suggest getting in touch with Rupert X... he had a "manifesto" that described what you are attempting to achieve with your rule change. It's worthwhile reading to anyone interested in the sport of motocross!
http://twostrokemotocross.com/2009/09/the-american-institute-for-advanced-motocross-studies-5-year-plan/Let me know if there is anything else I can do to help.
