I think everyone catches their shin every so often - I do when toss the ball badly but still decide to swing at it.Wow. I really like your serve.
Well spotted by the way. Yes, my follow through and deceleration is not smooth enough and I stop before I should and even pronate to the right side of my body instead of around the body.
Years ago I served and hit my shin really hard. With the next serve I hit the exact same place. Ever since it is hard for me to complete the serve around my body. This I believe can help protect my shoulder as well as make the serve more effortless.
Which grip do you serve with?
I am no longer in a panic with asthma as when my filtering systems suddenly failed to control purple air (unhealthy to hazardous over 24 hours exposure). We partially sealed some of the worst leaks and now can use our whole condo. YOU CANNOT SEAL TOO MANY LEAKS FOR SAFETY. After two weeks of smoke, the 3 very large fires nearby are much smaller based on satellite fire observations. There is less smoke outside, more like AQI 100-150 - 'unhealthy for sensitive groups'. (That's just above 'moderate' level of 50-100 AQI.)