tIANci, I have a couple of LEOs (.46 Pro & .61 Pro ) & they work really well. Not quite as powerfull as a TT Pro, but ever so much better than an OS LA, & they cost about the same as the LA. The LEO quality is good -- noticeably better than the MECOA .46 Tomcat that I have & they start better than the MECOA & nearly as well as the TTs (which I find to be exceptional starters). I would certainly choose a LEO rather than an OS LA (I've owned both the .40 & .46 LA).