I've had the PSI jig for about 5 years or so, and have had no complaints. (Granted, I've been primarily using a Tormek setup on my gouges for the past couple of years.) The Wolverine is better built - typical of Oneway - but the PSI jig as served its purpose for me and did a fine job on fingernail grinds on a gouge. As was mentioned, I don't think the Wolverine jigs and accessories like the truing tool will fit the PSI base. If I were buying today, I'd still save the $100 or so and get the PSI setup. Or just get the Tormek jigs for a dry grinder. 😉