I use prop erosion tape on my Hartzell BA prop all the time. It gets changed out at every year's condition inspection not so much from wear but after a year it starts turning yellow and with the curved blade you start seeing some separation from the blade at the tip section. The tape removes easily using some light heat from a heat gun; a hair dryer would probably do the trick. Clean the blade with rubbing alcohol, let it dry thoroughly, then apply the new tape. The tape comes in two thicknesses, .008" and .014". I find the thicker tape easier to work with. There's an excellent
EAA Hints for Homebuilders video for installing the tape. 7+ years with tape on the prop blades it has saved them from some nicks a few times. I do mine in two sections just like Dick Koehler describes in the video. One longer section covering the blade as far as the yellow tip paint, then a shorter section for the tip. You are right that the last 2 1/2" would be a challenge to cover with the heavy curvature at the tip. The picture shows the thin tape with about 35 hours and 6 months on it. I've had good luck rounding the corners of each tape section. Do not touch the adhesive side, otherwise it will separate prematurely. I also let the tape sit for at least 24 hours before operating. Have not noticed any speed loss since I started using it.