I did discover something yesterday on probably my best shave so far. I've been trying to stick religiously to left hand for lhs of my face & right had for rhs to train myself to do it properly, but I've been having serious problems trying to find a comfortable angle doing my chin & the blade just seems to stop as I'm trying to go round to the underneath of my chin. Tried it the other way round & used my left hand for the right hand side of my chin, & vice versa & found that to be so much easier. Still not perfect, but it's the first time I've not been left with chin strap for my Mach 3 to deal with. You learn something new every time. One day I'll risk ATG/XTG again.