Hi Randy,
Maybe I should say neighbor! I too live in South Central Oklahoma and know most of the dealers you are looking at. I bought a HotSpring, but they don't sell tubs anymore! I looked at Sundance, LA, HotSpring.
I don't remember who, but someone recently wanted to wet test the Bullfrogs and said the dealer was charging money to wet test. All the others you mentioned will be happy to accommodate you on wet testing! In fact, the LA Dealer said I was the first person they had ever seen wet test in Oklahoma City! How's that for notoriety !!!
I would be very interested to hear about your buying experience. It has been almost 2 years since I bought my tub!! Still loving it!!!