I just got rid of my Microsensor bibs and shorts. The chamois wasn't even under my sit bones. While riding I checked where my sit bone was hitting the seat and the chamois. Most of the big chamois pad was sitting 2" back behind my sit bone and I was actually sitting up front. I tried everything. Just wasn't working for me.
They were a little sensitive to piling and the front seam blew out after about 2 months.
I opted for a pair of shorts/bibs with one piece of chamois and with wings. No more problems. I still use an old pair of PIs that have the one big piece of chamois and they work fine with a little chamois buttr.