I got my first Clock a few weeks ago and after noticing how nice and simple the speed solving methods are I was wondering why people do the turn at the start. If you just memorise 5 numbers (and do a couple of really simple calculations) it's very easy to know how to do the first face without looking, which would save having to flip the whole puzzle over. Would that not be quicker... or is it actually much trickier to do in practice, and not save any time?