It really depends on your swing speed. If you're in generally good health, age 52 you probably would be fine in 'stiff' but not 'x-stiff'. I'm 58 and have played stiff shafts my whole life. Never was able to hit XS (couldn't generate enough speed), and regular shafts just feel to whippy for me (can't control them), so any loss in distance due to me not swinging fast enough to take advantage of stiffness is offset by a more predictable shot pattern.
I don't remember if Dallas Golf has a simulator bay, but if you were to go to Dicks on Central Expressway at Park Lane they have some there and you could see if someone will let you demo swing a few clubs in there. if your driver swing speed is over 90 mph you're probably fine in stiff shafts. Again, if you were to get some lessons a good teaching pro can help you figure out what sort of shafts make the most sense for you.
PS I'm happy to make an introduction for you with one of the pros at my club (Lakewood).