That's right. Cams rotate once for every two turns of the crankshaft... Now you just need to remove and measure your shim thicknesses to determine which replacement shims you'll need.
Agreed. Go through all of them. Sand down and move around, no need to waste money on buying extra shims. Easy to get the clearance exactly as you want. :goodluck:Yes I would definitely adjust all of your valve lash clearances now... I just sanded a few of my shims mine down by hand to desired thickness with wet emery cloth, and switched a few around to have them all at near middle of spec range; 0.18mm inlet and 0.26mm exhaust.