Adding experimental to your call sign with towers isn’t important for normal ops. If the controller knows their types, then they’ll know your performance based on that knowledge. If they don’t know their types, then making them aware of your experimental nature means nothing. They don’t have different runway separation or procedures for EABs. That’s based on specific type.
Now, making tower aware of your EAB because you require special handling is a different story. That’s a service that should really only be used in the test flight phase and not on a day to day basis. Even then, it’s really not much in the way of special handling.
Having said that, by all means adhere to the FAR / AIM and continue to use “experimental.”
There's a thread on VAF about no LAHSO operations to be given to experimental aircraft. https://www.faa.gov/documentLibrary...d_and_Hold_Short_Operations_(LAHSO)_FINAL.pdf
They'd need to know if you're experimental for this, at least.