Weight pockets on the Hydros Pro were much larger than I needed (3 lb per side on the waist), so lead shifted noticeably. The material was "grabby", so small shifts to better align weight distribution turned into deliberate actions. I couldn't move the front D-rings high enough.
I got rid of the Hydros and am MUCH happier with a BP&W. According to ScubaPro themselves, the Hydros is designed to be a modular, back inflate BCD. That's exactly what a BP/W is, and I got mine for less than half the price of the Hydros. (In fairness, it took more time for this BP/W neophyte to select components & setup the BP/W at that point, as I did not go with a "package".)