Try-outs during Highschool season

I thought the rule was they could not compete with a team other then the high school team. Don't hold me to that. I was just searching through the Texas UIL rules and could not find anything on the subject.  I have heard of travel/club teams practicing on weekends for High School players that wanted the extra work, just no tournament play. Not sure if that was right or not.

Just found this.

https://www.uiltexas.org/baseball/faq

Q: May students participate in non-school activities?

A: Students may participate in non-school activities at anytime. This means that a student may play, practice or participate in a try-out for non-school teams.

Thanks , TxballDad !