Thanks for the input.
I've found that in BSA frequently the answer is "A Troop can do whatever it wants to do."
I was looking for the BSA recommendation, which I think Bob White provided. Certainly lots of things work well with lots of Troops.
My question is one of belongingness. If a boy belongs to two patrols, a Regular patrol and a Venture patrol. What patch goes on his uniform? What is his patrol of record? During patrol meetings where does he go? If he goes to the Regular patrol meeting, then the Venture patrol suffers. If he goes to the Venture Patrol meetin