Looking at upgrading some clothing this year and one thing that I really want is hip/leg vents in pants and possibly base/mid layer (e.g. SG full zip helio bottoms) as well. I'm concerned about the zipper causing pressure point where the bottom strap of the saddle would cross it. The helio bottoms zipper comes forward more so I don't think those would be an issue, but how about others? Anybody with some experience speak towards this? Thanks.