I can't judge but what I can say that as for me ,I really never put my bows away,even though I live in suburbia,I still shoot in my back yard all year.Sometimes one arrow others ten,sometimes a sessions that last's over 30 min.No set times no set sessions,it's just a way of life for me that I have been doing for 20 some odd years.One thing though to note is that if you do shoot too many arrows in one sessions(depending on who you are)you could start to fatigue and start shooting bad.I don't know if after shooting so many years that you will pick up any bad habbits other than punching(taget panic,buck fever) but you can overcome this as I have before too.This is where practice is important,how you practice.I also believe that form is set after you learn it,kind of like riding a bike you may not have rode a bike in years but when you get on it ,I doubt very much that you will fall off or not know how to use the brakes.Just before the season as it is now , before I leave for work in the morning, I will shoot one arrow,I aim small on my taget in the yard and let go.This is what I do,and it woks for me.Oh yeah BTW what's this 3"group stuff at 20yardsOh yeah one more thing I like to practice out to 40,50,and 60 yards durring the season and with my best arrows try and get a2"group or better if I can.