I have a Matco 1/2in drive torque wrench I use A LOT for lugs and other such parts as well as a 1/4in drive Proto which sees more limited use. The proto is ok, but about 8% off through its range. The Matco seems to have come out of calibration all together as the scale indicator no longer lines up correctly. Called a couple shops around and received one of two replies: Either it'll be cheaper to buy a new wrench from us than fix yours or you have to send it into Matco for adjustment. Had it calibrated a couple years ago with no problems, but I don't know if it required adjustment that time. Worth shipping it to Matco or are those CDI brand wrenchs for $150 that good of a deal? What about some of the digital torque testers out there?