Hi FP2500, There is a saying I have heard over and over: you can't teach velocity. There are some things that you can do to help you get a couple miles an hour increase but your body type and age are the biggest factors. What I am getting at is that your top velocity may be set already. You just need to keep working hard and not worry about something you may not be bale to control the way your post sounds.
To answer your question: you should see crusing speed increases with all the work you put in. With increases in your crusing speed you will also see increases in your peack velocities. They go together and you most likely will not separate improvements in the two. I would not set goals for increases. Instead set goals on the work you do, not the end result as I will explain in more detail in a very real example.
I'll give you an example between two pitchers I know very well, my son and a good friend of his since 5th or 6th grade. Fast forward to 10th grade and they are about even in every way with regard to pitching, in fact friend is probably considered a little better and has a slight higher velocity. I would say that my son's friend has the advantage here mostly because he is is about 9/10 months older and therefore has a more mature body thus improved musle formation, bone structure/growth plate strength, etc.. They both go to the same pitching coach and both have great mechanics and work ethic. Fast forward again two more years going into their senior years there is a noted distinction between the two. My son is crusing at 88/89/90 with peaks at 91/92. He has some control issues at his peak velocities and prefers to stay just under 90 at 89 or so instead of max effort. His friend is not able to hit these peak velocities and cruises a little lower too. I can't remember his exact numbers. I ask the pitching coach what is up with the difference between the two? His response was very simple and straight forward: my son has what he called a "loose" arm and he described the friend as "tight". Then goes on to describe how a tight arm limits the arm movements and rotation and thus velocity. My son's friend was probably stronger than my son, but because his body type was tighter than my son's he was not able to throw as fast, at least according to the pitching caoch. I am no expert on this topic and simply relating my experience. To finish this story, my son was able to increase his velocity over the next three years in college to C at 88 to 92/93 and P at 94/95 through much hard work and training and great coaching. His friend never attained these levels of velocity.
The moral to this story: don't agonize over things you can't control. I believe TPM once summed up the items you need to work on as "Core, legwork, bandwork, long toss, mechanic improvement is probably all that a 17 year old (still maturing physically) young man needs. Here is the link to that thread:
http://hsbaseballweb.com/eve/f...941/m/6467070226/p/2 that you should probablt read too.
Good luck, and keep your nose low and your work high!
Oh, by the way, both my son and friend are LHP too!!! Your velocities are very good for a sophmore level pitcher!
