Dinghy "aero" PFD Recommendations ?

[rocketwench]

Any recommendations for PFD for dinghy sailing? Find my pull-on whitewater PFD is snagging on boom esp in the upper back when I gibe and tack. I am about 145 lbs sailing laser, feva and other busy dinghies. Already have a manual inflatable, and do not want to use that on dinghy. Most folks around here are using whitewater or other paddling pfd's, which is what local sail shops selling, but want something sleeker so I can move more like a monkey and less like a rhino. Any ideas? How about one I can wear under a paddling top/rash guard to eliminate snags? Anyone make a pull-on or zip-up, formfitting PFD without a bunch of straps, doodads, pockets on outside to get hung up?? I also carry a gerber which is strapped to outside - any ideas how else to rig that so it is not a snag potential? Much appreciated -Thanks- Andy