Do you guys do anything to the bottom corner in front of the front wheels that bottom corner? looks like it might rub there.. thanks

Yeah Mines folded up and I'll try find a pic.

Edit; sorry dude no worthwhile pics at the moment can take one tomorow

You can cut it off and refold the edge, thats what I had to do.

I run 4 degrees of positive castor on my 1200 that necessitated cutting the guards. The work was done by a panel beater.

You can see photos of the end result in my photo album.

I'm not sure of the url/link (if I find it I'll post it) but yes absolutely guys with wider/taller tyres, offset rims and or more positive castor (moving the wheel centreline forward to achieve it of course) have to trim the bottom 6 inches or so of the guard 'lip' about 1-2 inches forward of it's original location. You can basically cut, and turn the wheels (the trick I'd use is to put 2 pieces of plywood under each front wheel, with a liberal amount of grease smeared on their inner surface, like a 'sandwich' so they can spin easily. Then get a stockily built friend to lean on the front of the guard to simulate what compression/roll you might get on a hard corner with good tyres on a circuit, and measure and cut bit by bit.

I've just picked up a front air dam/spoiler, and had a discussion with the bloke I bought it from who explained this very thing and the typical amount that I might need to trim off it and the guard to make it clear with non std wheels and suspension/alignment settings.

http://www.iprasa.mx.com.au/cars/12%20allan.htm

shows what is done on an improved production racer, with 14 x 7 wheels

http://jmac.performanceforums.com/guard1.jpg
http://jmac.performanceforums.com/guard2.jpg

are a couple of pics I've gotten (I think from the forum, but not 100%) that I had previously saved on the hard drive.