Is there such thing as getting too wide of tires for your rim?
the tires I have right now are the widest possible to fit on a 7.5" rim. (265/50/15 BFGs) the sidewall kinda curves in to meet the rim. It sticks out about 1" past the rim.
One thing I noticed about these tires is that they never make any sound when spinning, and they leave very little rubber behind. I have the tires deflated a few psi less than they should be running at and yet it's still insanely easy to spin these wide tires.

Could it be that I'm not getting an even tire print with these wide tires? Might I be better off with thinner tires so that the sidewalls are parallel with the rim, and thus a better tire print on the pavement?

Jeremy-In search of tracton

 

If you have stock wheels, they are 7 inches wide(about 7.5 to the outside edges). 245's are as wide as I would go on 7 inch wide wheels. Yes you can have tires that are too wide, it hurts traction, tire wear, and looks funny.

 

A 245/ or 235/60 will work best on a wheel of that width.

By using a really wide "265" tire on such a narrow rim you really do not benefit as you might think.

You will always come out ahead in handling and traction to go with a higher quality brand/type of tire.

For example in 15" sizes there isn't a lot of wide/high performance tires available. usually 225 is about the widest tire made in a ZR rated performance tire, because is was a stock '80's Mustang size.
Go wider to a 235 or wider and most of the options are SR or TR rated which is a BIG drop in performance.
I may get crap from people about this but BFG Radial T/A's are not a real "performance tire". The Radial T/A is a "cosmetic performance tire. It only comes in SR=112 mph or TR=118 mph ratings and "looks sporty. When the rubber meets the pavement you want a tire that is close to your rim in width, that has a HR (130 mph) or higher rating with a strong sidewall "better handling, less sidewall flex) and a stickier tread compound.

I would recommend trying a 235/60HR15 Michelin Pilot XGT H4 or Pirelli P600. those 2 choices are available from TireRack and would certainly help your traction problem.
Good Luck, also check out Discount Tire's website...

Or there's always that upgrade to 16" or bigger wheels which opens up TONS of choices for tires in many performance levels.

 

I have had good success with yoko's AVS intermediate. They are ZR rated and handle very well, as well as coming in a number of widths for smaller wheels.

 

Take a piece of chalk...
Make several lines across the width of the tire.
Say evry 60 degrees or so...
Drive around for a bit.

What do the lines look like ?
Adjust tire pressure accordingly ...