I retired my teebirds when the tee-rex hit the market. Why have a slower version of a disc when the faster version is just as accurate if not more? Hit a 150 foot side arm skip shot for bird yesterday with my tee-rex. This is a shot that my teebird would have just stuck on the ground. I dunno if its mental or not, but my sidearm game is much more accurate with the tee-rex.