What waivers?
Discovery is automatically required under Texas law.
It is illegal to demand waivers.
The defense asks, law enforcement and the prosecution are required to deliver.
Period.
There is no grandstanding on the part of the defense.
Let the court decide whether the waiver is unreasonable.
Anything else is malpractice in my book.
Sorry if this doesn't jibe with your slim grasp of the law.