Don't really need any more scopes, but keep getting drawn toward a March 1-10 SFP with the FD-2 ret. Is it going to be easy to get behind? It would be used for tree squirrels, shots will be 10 to 70 yards. Is the only 1-10 SFP , I see that has side focus/parallax down to 10 yards. Any reason I should not get one. I have sight problems and daylight bright illumination is a must. Any input will be appreciated.