I spoke to LRS today about sizing a new WindShield for my 2010 FLHTK. I've tried the Stock 12". The stock was great, but for the fact I had to look through it. Those Bugs and rain drops make it difficult to see through the stock size. I then went into my local HD Dealer and got myself a 10". Now this is just not comfortable to look over. It meets the general sizing method being at the tip of the nose, however up hill, close to other objects, in turns and the end of day slump this goes right out the window. So at ruffly 5'9"+ a bit, I found myself ordering the 8" Ultra LRS with a light tint. I hope to have it by the end of the week for a nice 400 mile trip (Marcus Dairy). I think that would be a great test. By the way. The gentleman I spoke to on the phone was very patient with me, and very helpful.