That is what i use as well. Handy tool!Same here, but, to help out when alone, I've been using my small Snap-On mini flat screw driver with a magnetic tip on the end, it's actually quicker doing that way and alone to boot.
Works perfectly when doing the springs changes on the dyno or in car, picks the the valve lock apart, spread and turn to the loose side, then use the magnetic side to take out the keepers, and they do not fall off.
Use the same mini screwdriver to "time" the keepers as well when reinstalling, and all alone is quickest.
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