It's really not that much of an issue, especially when the head is hot,since the bed is sprung, and will deflect out of the way; it is a good idea to just grab the filament - I generally put a pause into my UM1 start gcode and right after the initial priming extrusion, to give me time to clean up the head with a pair of tweezers. Part of the standard process is actually intended to drag the oozing head over the bed specifically to clean it, on the way in to the start of the skirt.
What is potentially more of an issue is homing the z-axis before heating the head; you really do want any plastic attached to the head to be molten before you ram it into the print bed. Because of the springs, it's probably not a huge deal either way, but I always make sure to heat the head before homing the z-axis.
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Dim3nsioneer 557
I do the same work-around for some months. And sometimes I miss the right time to grab the outflow with tweezers (better for the fingers).
Actually, it should be possible to solve the problem as all the involved actions are in the start.gcode.
So this order might solve the problem:
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