Yes it helps a lot. I have another quest, what do you thing about high toss ? I tried to learn high toss serve but I don't know if it's really necessary, like I can improve serving with short toss, maybe it's another weapon I don't know.
High toss adds ball speed / velocity before contact which increases spin potential after contact.
How high is high?? 1.5 / 2m+ above head height? Or higher?
A coach I play with uses a high toss ( roughly 1.5m above his head) for his FH pendulum serve, very fast and spinny. Harder to control for a short serve ( bouncing at least twice on opponents side of net ) you will need great touch and feel to really master the high toss.
If you can master it, then there is potential for greater spin variation (to a certain extent). Variation is key when serving!!
Personally I use a couple of heights of ball toss, usually low for BH serve, in fact I have to remember to make sure it is at least 150mm high after leaving my palm.
FH hook / punch serve and FH pendulum can vary from chest height to head height.
FH reverse pendulum is usually lower max chest / chin height, I just find it easier to execute the serve with a lower toss.
High spin can be achieved with a low toss as well, personally I would say that a low to medium toss is sufficient, but really it’s a person’s preference. Maybe start with a low toss when first learning a serve and then gradually build up to a higher toss after you have mastered the low toss serve.
Regarding deception, contact position on the bat also effects spin and speed. So you can use the same action but not only contact the ball at different positions on the ball but different positions on the bat as well.
Imagine a line down the centre of the handle to tip of your bat, splitting into equal halves (vertically) Contact on the bat towards the ‘leading edge’ ( for a RH player this is the left side) will produce more spin than contacting the trailing edge side (right side)
You can also then draw lines horizontally, 2 lines creating equal 1/3’s across the bat, fast is the bottom 3rd at the tip, medium middle 3rd and slowest top 3rd closest to your hand. Then add the vertical line creating 6 segments on the bat, you now have 6 contact points that will give 6 variations from one service stroke.
IF YOU ARE PROFICIENT ENOUGH !!!!!!! 😎😂