I made me a hoky truing stand out of a couple of 2x4's, some metal strapping to hold the wheel, and stiff wire for a flexible gauge to run along side the rim. I measure for offsetting and so far I've had really good luck. Of course, I've always been able to use an old spoke for measurements before ordering a set of spokes and the thought of building a wheel from scratch with a new hub and new spokes scares the bejeebies out of me. I just know that no matter how much research I do I'll get the wrong length spokes. Good luck,