I was throwing my first “Bullpen” session this season (if thats what you call throwing to my dad at a ballpark mound) and i have noticed that my fastball and change have developed to a point where i thought they couldnt go a year ago when i really got into pitching seriously after hearing that i had potential to be really good from a former major leaguer. Anyways, he told me not to worry about throwing “anything other than my 4 seam heater and changeup at first” so i really didnt mess around with breaking stuff all of last year.I am going to enter a league on April 5th and go for being the main pitcher for my team. I have been browsing around this site for the last couple of days and seen a lot on breaking pitches and learning them properly from a coach and such.
My question is basically, what is the most convinent breaking ball for a pitcher to try and pick up? In other words, which is has the least strain on a developing arm.