My model 2 had and my
Model 5 has the tappered tip warp, i have never had a problem with the warps yet, i have a 3 blade and a 2 blade GCS they both pull real good , both the warp and GCS have " snap" meaning when you go full throttle they will set you back in your seat, my experience with the ivo light was on a 503, i didnt like the lack of "snap" but at cruise it was very smooth, to me though it just didnt pull like the others i've used, i haven't flown a medium ivo yet