I have both kinds. I use the ID shorties for day-hiking (mainly in tick season, to keep the critters from crawling up my pants) and the MLD shorties for backpacking, since they are lighter and pricier. Again, only in tick season or when snow or mud is a possibility.

I've had no problems with either. Your mileage, of course, may vary.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey