I think there is definatly a higher success rate. Took me all of around 20 mets to upgrade a Super +3 97 tao cap, Elite 97 bag, Elite boots from 90-110 and a uni 97 necky. Not the best, but took me 60+ to up the cap from 82, so I don't know.. Was told it'd take me 120+ mets this time. Maybe it was just luck. Did it in my house, if that makes a difference. Can't get the scanner or the tracer to work, and hide makes me dc after a few mins. But the name finder(one that gives coords), met works (havn't tested db), socket thing works, and the teleport saved me twice already while I was red, one of the times I had a 115+ rb archer/archer on my ass, hello tc.
Anyways, great tool, good work