Got two of them & they work very well. Loads better than an LA .40 that I also had, & very similar to an LA .46 that I just recently acquired -- except that it is easier to tune than the .46 LA. It winds up better than the .46 LA with a 10-6, but the LA is a bit better with a 10-7. The TT 42 also swings an 11-4 very effectively.