I have the micro without the dvr. I mean to spend that extra money just to be able to record is a waste in my opinion. Love the camera it works great. This will be my 2nd season using the micro.
As far as the fins that came with it, mine came with 4 for all different setups. I usually keep the plastic one on all the time because you can adjust it to look strait down or horizontal or anywhere it between. It has like 9 notches to set it exactly how you want.