The only sharp picks I had ever played were made of undescript materials that looked like nylon but I'm not sure what they were. Anyway, they weren't very rigid despite the strong thickness, and the grip wasn't too great either so I forgot about them and played teardrop picks only for years.
However I started feeling guilty for not doing a real comparison between teardrop and sharp picks of the best material I know: Ultex. Having the 0.60, 0.73 and 1.0 teardrops, I ordered the thicknesses I didn't have, the 0.90 and the 1.14.
I planned to change the point into a teardrop if I didn't like it, with sandpaper it's quickly done. But I won't be doing the change because now I like the sharp picks a lot more. First the point touches the string for a briefer time so I can play faster tempos cleaner and easier.
They also make less pick noise, just mute the strings with your left hand, and pick them, the difference is clear. Watching them with a loupe, some picks have a slightly asymmetrical tip, but a few touches with superfine sandpaper rectifies them, and then they seem to glide over the string with a smoother sensation.
The attack is sharper and that's so much better when I play metal tones. The snappier attack is also nicer to my ears when I play electric clean or acoustic.
I think I prefer the 1.14 a little bit but the 0.90 is already a neat improvement over the rounded picks, I'll keep a few but I don't think I'll play them again, will probably give them away to a friend