I’m in my 30s, just started playing again in 2015 after not playing since HS. I bought TuffCuff for the 2016 season, hoping it would at least get me back into more fighting shape. I loved it. It gave me focused workouts, a plan to follow, and a detailed progress report. I wasn’t 100% faithful to the regimen, and as such I probably could have improved more, but I ended up tacking on at least 5-7mph in just one season’s worth of use, and that’s after being out of the game for 15 years. I’m still using it for the upcoming season. Highly recommended.