I purchased my shooting friends MX8 combo as he cannot shoot doubles anymore, it came with this Rel/Rel trigger by "J. White" and his original Pull/Pull that he used. I have and currently shoot a TMX Special with a Bowen Coilspring release, I am no expert on releases, but this thing is crisp and fast! I had Karl Hample (Gunsmith) at the Michigan state shoot check it out and he said it was operating perfectly as it should and is a very desirable trigger. I have shot it several times and since purchased another release trigger (slower one) and no longer need this one, has some bluing wear on it. Moving this one along $1075 shipped -PM Best