I've tried the following
Plasticovers - pretty good, but sometimes at home I feel like they make me sound a bit like a Kazoo
Bari - awful, dull and lifeless
Fibracell - pretty good, play a bit soft. Needed a harder strength than I expected
Hartmann standard - very good, but cut my lips to bits
Hartmann Carbon Fibre - ludicrously bright, and cut my lips to bits.
After all these, gone back to good old RJS 2M. I reckon I reject 1 - 2 in an average box. Much better than when I used to play Rico Royal and I used to chuck about half of each box.
Jon