what is the more popular crf450 carb setup?

[trx/lt500r]

What carb and carb size are most of you running on your crf450 or yz 450 hybrids?
40mm 41mm?
fcr?

thanks

[Groves187]

I'm using the stock carb on my 04 Crf450 hybrid

[Lasher]

Same...stock 06 carb and motor