grinding rakers with super jolly -

All of the rakers already slope in a radius, sorta like a form ground cutter. If you set the grinder to 10° with a straight wheel, as per Oregon's instructions, you will get the proper ramp.
No need to profile the wheel. The leading end of the rakers should be below the previous cutter's kerf.

 

Also if you flip the pawl over it does a great job of holding a 6" scale flat across the tops of the cutters allowing you to see the gap between the raker and the top of the cutter.

 

but if you profile the wheel so its concave it just makes for nicer stuff...