Really thinking its time to get atleast one shallow water anchor and having a difficult time choosing between a power pole blade or a minnkota raptor. Length will most likely be 8ft and going on a 21ft boat. Im a bit behind on getting into the shallow anchor bandwagon so bare with me lol. I understand the blades are more expensive but are they worth the price difference compared to the raptor? Also is it worth getting the active anchoring with the raptor?