I posted a thread about 21's the other day and got great response. Here's another question. Is it possible for a single-man operation...to run only 21's and still make as much as the guy running a 36 or 48. Consider this...the guy with the 21...may be slower...but has less overhead...ie gas, repair, payments on a 36 or 48. And we're talking cutting up to 1/2 an acre. Just curious...any thoughts?