Reading the manual appears the typical modus operandi is to adjust the valves on the rear cylinder, bolt that up, and then move to the front. Problem is I need to get the shims out on both ends to measure them and figure out what new shims I need. Is there a trick where I can do both the front and rear cylinders at the same time? It seems the risk is the difficulty of re-attaining TDC after removing the camshafts with the marked gears. Any suggestions or do I need to stick to one cylinder at a time? Thanks!