Ride hight question
 

So I just bought a 03 600rr and the previous owner lowered it 2 or 3 inches front and back, with me being 6'2 I have no problems with it at stock hight. He gave me the stock lowering links to raise it again but I'm debating if I need to or not, what are your thoughts concerning stability and cornering

If the bike was professionally lowered, it SHOULD be fine to leave it. If you find the handling is off or not to your liking - raise it back up.

Personally, I'd bring it to stock height regardless. The chassis was designed to ride at a certain height and with certain suspension settings. I'd bring the stock links to a good motorcycle suspension shop and have it retuned with them.