Wolverine Vari-Grind Query

I just got my new (used) vari-grind attachment from Amazon. I do not have the wolverine grinding jig and am wondering if anyone as tried using this attachment without it? The instructions say something about drilling a 3/8 inch hole for the stem to pivot in. Obviously I'm gonna give it a shot before I spend another 70 or 80 bucks for the jig. Anyone have any experience or advice?

Thanks in advance.

Jason

I made something along the lines of this: http://www.taunton.com/finewoodworking/pages/w00115.asp? works well and it only cost me some scrap I had around the shop!

That looks great, Peter, thanks for the quick response!

no problem Jason, I remembered seeing the link on another forum yesterday so it was close at hand ;)