The four stroke wins in MAINTAINENCE? Really? The premix issue is moot because the 4T needs oil in the crankcase and if tuned correctly, a 2T top end will outlast a 4T top end by 10 times at least.
Resale must be different where they are because used 2T's are bringing top dollar and used 4T's are gathering dust.
Race starts? Put them at equal displacement and the 4T loses AGAIN. These guys can't poop in their own kitchen. They need to say something good about 4T's to keep the advertisers happy.
Just my .02