Anyone using a HD underwater camera? I need to pick between HD and anolog for underwater trolling footage. Seems high resolution is the advantage of HD but when the plankton bloom I'll pick up alot of plankton? I have the regular Aquavu and it is crapping out on me, just trying to get a more reliable system. HD is twice the money as anolog, just wondering if I would beable to pick up the different characteristics on a fish if I filtered out the plankton if I used HD. We rigged a HDgopro up for trolling and the sound underwater was interesting but the amount of plankton on review was overwhelming, anyone figure out how to filter the fine stuff on screen and keep the detail of the targeted object?