2 inches is 5cm or so....thats a lot longer than what I use. I had long PR knots but when casting found they would affect the cast, or jam sometimes when retrieving.The longer the knot, the harder for it to flow out as it forms a stiff section. I guess if it slows the cast down enough the following braid can wrap a guide. For me , I try to keep mine to 2cms or so. Havent had any issues with the shorter version for me, but Im not straining them as much on kings as you do on GTs.