I just sent back some PI microsensors. I ordered them because there was a lot of endorsement of them...but they had baseball-like stitching in strategic parts of the chamois and it was stiff and uncomfortable. Those are the places I get rubbed too much so I don't get it.
I just ordered some cannondales. I'll let you know how they work. That's what I wear now, but they are an older model called Chronos and they are starting to sag. Sigh. I guess to each her own.