I'm looking for a good pair of compression shorts for winter running under running pants, for additional hamstring warmth. (Not interested in tights.) I'm considering the CW-X Pro or the Under Armour Heatgear compression shorts so far. Haven't seen the latter. My concern is the center crotch seam and concerns made about it in a recent thread:
http://www.letsrun.com/forum/flat_read.php?board=1&id=3840555&thread=3839928
Just noticed the Nike Pro-Core has a design which avoids the center crotch seam and is well-reviewed, but none of the reviews are by runners.
http://reviews.nike.com/9191/269605/nike-pro-core-long-compression-mens-shorts-reviews/reviews.htm
Any recommendations for the Nike Pro-Core, other brands, or is a center seam not really that much of a problem?