I have answered similar posts to this many times, but I'll add my feedback. I am 100% oldschool when it comes to picks. I use the standard teardrop shaped Fender heavies (occasionally mediums for some stuff) and always in white color. If you lay a tortoise shell colored pick on your amp, it's hard to see. White is easy to see whether you are practicing or under stage lighting and the "basic" shape works for me. I can maneuver it quickly and accurately when going to and from two-habd technique and if I screw up on the placement, I can play with any part of the pick without screwing up.
I think the only problem with that style of pick is that the plastic itself has a vwery slick surface. If your hands/fingers sweat a lot, it could give you problems. I have tried all of those fancy picks and they have all ended up in the garbage. You can often find a music store brand made of the same material and thickness as well and get them dirt cheap.
Bryant