Start opposite from 6 o'clock from the valve...
I always start at the valve as it's the most delicate part of the tube, so it's best to get the tyre over it when it's easiest.
Except you're more likely to pinch the inner tube that way.
I forget to mention - push the valve inward to move the inner tube away from between the rims and bead just to be sure.
Not been a problem for me, but I take your point.
@edscoble started
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I always start at the valve as it's the most delicate part of the tube, so it's best to get the tyre over it when it's easiest.