I am a 6’ 1”, 165lb sophomore in high school. I only started pitching about a year ago, but I have seen an increase from 71-83 MPH (clocked in early April- haven’t been since then).Naturally, going into the spring season, I had a ton of confidence, and was looking forward to just going out and blowing the ball by most of the competition I faced (I go to a very competitive prep school in the Northeast, so I was on JV). However, once the season started, I injured my back lifting, and it affected my mechanics; for some reason I kept dragging my back foot, and bringing my arm slot abnormally low. Going into the summer, I will be attending a bunch of showcases, particularly for academically strong colleges such as the Ivies and a few others. My biggest issue seems to be consistently- sometimes my dad clocks me in the high 70s, but sometimes I throw low-mid 70s. In game I don’t have this problem (adrenaline?) and I can hit low 80s, but I haven’t pitched since mid May and I want to make sure I’m consistent going into this pivotal summer. Any opinions?
Quick side note- I’m also a little concerned about initial arm mechanics-I will attach a few videos if this post gets attention and a few replies- but is there any general rule about arm slot?