Interesting, Canuckxx. I was looking at lobe heights in the manual. Intake will gain 1.2mm lift and exhaust 1.0mm. I'm not familiar at all with hydraulic valves. Are the springs going to take the lift or are you thinking the 1100 springs and rocker assemblies? I didn't think they'd reach. Chances are pretty good you won't need the notch because you're using the same heads and valves so they line up properly. The 1000/1100 valves came in at a different angle and placement.
The numbers for lift using the 1000 limits are the same for intake lift and a tenth less lift on the exhaust than the 1100. So the only real differences are in duration and potential increased dynamic compression with the earlier closing of the 1100 valves.
I've always wondered how the 1100 cams would do in mine.
Joe, if I was using a grinder for piston notching, I wouldn't want to see. I know I'd lose it and gouge the cylinder wall.