p51-
You are not entirely accurate by saying they discriminate by engine type.
They discriminate by control type too, ask the RubberFF guys about that one.

RubberFF is welcome at AMA club fields, but verboten by AMA at PPP fields.
Discriminatory, divisive, & costly...
How costly? We wont know how much we will have to subsidize the PPP till next year, that is assuming of course all the little expenses for PPP get reported... Seperate Advertizing / staff manhours / insurance premium / .... volunteer programs
Subsidizing PPP.

Quick reality check:
If AMA was 100% $58 Open, it should be financially stable,
If AMA was 100% $29 PPP .... how many weeks till the doors close & the sign gets taken down?
Subsidizing PPP.

Why ask for PPP assitsing volunteers without asking for Open assisting volunteers?
Why would volunteers only assist PPP? Do folks need more help joining based on what they fly? How much help do 1/2A guys need, less than the 40% guys that want to join?
Subsidizing PPP.

Toolman-
Good on your club for helping all club joiners regardless, irregardless, & disregarding what they fly.