J.D. I can't comment on the Crocker as I've never even seen one. However, I've heard many poor reviews also and that means alot. That GRS fixure is the one I've used for years until a year or so ago when I got the dual angle one. I still have it and use it for initial sharpening of flat chisels. Something to consider. While the price of the power hone and fixture is a fair bit of cash, like Tom said, we pay that for a barrel. If you lay out the cash and, a year later decide that it's just not for you, you can always sell it. There is ALWAYS people looking for a used sharpening outfit and you shouldn't have any trouble selling it for $40-$50 less than new. That's pretty cheap education. Something else to consider. Many people struggle to sharpen gouges. With the power hone, I just get the angle I want through the use of blocks, lay the gouge across the blocks with the edge on the hone and gently rock the gouge back and forth. Piece of cake. Of course you still strop inside and out but, again, if you keep and label you blocks, it's all repeatable. You asked about sharpening a 120, I'm trying to think here (not something I'm good at) and, while the face would be a piece of cake, it seems to me that the heel would be a pain. I bought the dual angle fixture for doing parrallel heels and I think it is better for heeling 120's but it can't be used for chisels. ANOTHER thing to consider, Tom suggested that the rig is $200. Lets say it $360 (I'm too lazy to do real math) and you only build guns for the next 10 years and you only use the sharpening rig once a month, that's $3 per use, plus interest so lets say $3.30. THAT's pretty cheap for accurate repeatable sharpening not to mention, as jerry said, you sharpen correctly and your work will show it. In 10 years you decide to get out of building so you sell your rig. Likey get $300 or more, now your cost of making your hobby more satisfying and enjoyable is, what, .50 per use???. I dunno man, seems like a no brainer to me.