The 357 slayer should be out, I think 1st of next month.I'm going to give it a try. The gun is getting great feedback from members here. I trust member feedback more than I trust paid for reviews.
The Texan on a tether to make it shorter in an interesting idea but the execution would require at least a 300cc plenum attached to the gun to feed the valve or a massive drop in power will occur. The tether just doesn't have the airflow capability to feed the beast fast enough.
If you are planning to hunt outside CA then there are many possibilities to hunt more species with a big bore. Somewhere Crosman has a chart of which game species can be legally hunted with airgun in each state.