I've been looking for a bench grinder to use for grinding HSS lathe toolbits for a while. I came across this grinder on craigslist and it seemed to fit my needs. It runs smooth as silk and I've fitted a new 7" wheel. The issue I'm having is that the tool rests are not adjustable for angle and are very small. I was thinking of making a 1/4" steel table surface maybe 4" x 4" to mount to the original rest and give me some extra support. The rests can be adjusted in and out but the top remains on the centerline of the wheel. To grind the relief into the tool, I'd like to tip the tool rest 4-5 degrees. Should I mill the original cast iron rest for the angle or make a new tool rest?