I'm using 100 grain Magnus Stinger Buzzcut 4 blades and they're really nice. They shoot close to the same as my field tips which is a real plus. The only thing I have shot with them so far is a big fox squirrel and it did the job, made a pretty nasty hole. Hopefully I'll get to try them on a deer this year.
I shoot 100 grain undertakers.. havent shot anything with them yet so i dont know how they do. I just want some good ideas in case i dont like them. i know a few people who shoot montec and they like them