Whipping means different things to different people. If you whip tiller, you are making the reflex ends bend a little more than the rest of the limb, creating a whip effect. Whip ends, in some books, means reflex. What I mean by taper the end is to make them thinner. Most people have a measurment, past midlimb, that they use to taper down the tips from. Example, I just finished a bow last night that had limbs that were 1 3/8"wide at the fade. I stayed with this width till I got to 4 " past midlimb, there I tapered down to 1/2". You can go down even thinner or start sooner past midlimb. OR you can have an even taper, or do a pyramid, or paddle,etc. etc. Just make sure you keep enough wood on the belly to tiller it down the the weight you want. I am getting a bow out of the oven tonight that im going to try to make 1" at the fade and have an even taper all the way to the tips, which will be 3/8". I put in about 2" of reflex and about 1" deflex. I might whip tiller it, or keep it R/D through the draw. My concern with this project is Im shooting for 60lbs at 30", so the limbs might end up being thicker than I wanted. I guess Ill see tonight, that is if I can clean all the bow grip 100 off. I got real messy with the glue up. arrrrggggg.