Originally posted by Mag
I would concentrate on perfecting a deceptive "normal" service movement instead.
Agree.
That's why we see all the pros just use the "plain" serves, but not any "twisting" or "flipping" tricks. All the tricks are fancy, and might be useful to against inexperience players. However, most of the tricks will cost "delay" or reduce speed/angle, therefore, very easy to make a mistake and giving experienced opponent even more chance to perform a deadly return.
The normal serves might not be useful for us sometimes. This is due to our own problem, such as not yet masterize the proper hand movement, serve angle, etc. It's more like, a tool for us is useless, since we don't know how to use it. It will be useful for professional, just because they can dig out every single piece of usage of the tool.