BWS,
Aside from trailering that tractor...which sounds like a problem you will overcome...and while the b2910 or b7800 might have been what you might want after you get all the work done on those six acres...If I got the right impression from one of your original posts, you seem to have a lot of work to do cleaning up those six acres.
My guess is that when the ground gets drier and the grass a little thicker you may be able to live with the amount of digging in that the tractor does. And I will bet you will appreciate the extra capabilities of that tractor while you are doing the initial cleanup of your property.
I do agree that you did buy a BIG one though! After seeing a L3130 I concluded it was too much machine for my 3.7 acres. And I can only imagine how big that 3830 is.
Right or wrong, I have an image in my mind of abandoned cars and stuff like that on your property. If you have to drag things like that around, the extra power and weight of that 3830 will certainly be in your favor over a B2910 like I have.
You may also be suffering from a little buyer's remorse. Questioning your decision, even if you don't know it! Remember, if one guy can be happy with a b2910 on 2/3 of an acre, you likely will be happy with yours on six!
My neightbor has had 36 hp Massy F. tractor on his 4.5 acres for years. And yes, he has a smaller garden tractor too for grass cutting. And a brush hog on the big one for rough cutting.
Many people who have the larger tractors seem to end up with a smaller one for grass cutting. Especially when the smaller lawn/garden tractor can end up costing less than a mower deck.
Don't jump too quick to change things, especially if it will end up costing a fair bit of change. The worst thing you could do is lose money going smaller and then find out that you were right the first time.