using R10 inside garage with concrete floor. hitting into a 10'X9' cage with impact/projection screen attached. I have artificial grass rugs from the screen out to the hitting mat to which the center of is 10', I have the r10 set up 7 feet behind the center of the hitting mat. I don't have small section of artificial grass between the r10 and the mat. My yardages are way off, flush hit driver consistently averaging 140 yards, A good 100 yards short of my real outdoor distances. I have plenty of room side to side and at least 12' head height. Any ideas on how to improve the detected distances? How much of an area does the concrete need to be covered for the R10?
