JERRY H. - Kraig is exactly correct, whether you set centered in the seat or off to the left is a set-up thing, If you run some extra weight on the land wheel, or just WAY TOO much weight completely, you can sit centered. A CC is so narrow the angle the tractor sits when in the furrow really upsets it's balance side-to-side.
I will say one thing about plowing fields with a garden tractor, a couple hours is all I want to do. A full size tractor with BIG tires, long wheel base, plenty of weight rides OHHH so much better. And after a couple hours that makes a HUGE difference.
Also for plowing I prefer a GD, pick the gear, turn into the furrow, drop the plow, jab the throttle up to cruising speed and GO!!!!.
HARRY - What Kraig & everybody says is the reasons I prefer a 1X8/1X9 over a Q/L. The WF tractors have a stiffer frame, resist twisting, plus the removable center frame cover makes servicing the hydro SO much easier. I had a 129 from about 1990 till 2005 or '06. I'm losing the #70 this spring, and I'll probably get a 129 or 149 to replace it when I find the right deal. It took me 3-4 years to find my 982, I keep my tractors a l-o-n-g time so it pays me to be picky when I buy another one.