Hi all, family owned and operated car wash for 25+ years, looking at switching out our two hydrospray rainmaker to two razor double barrels, we are unsure whether we want to get the big shot option and only use it on top tier wash and or use it as a buy up. We are getting power towers to help knock snow and ice off the running boards in the winter. We are also upgrading cashiers to commanders and we are curious what others use as buy ups, especially if we skip the big shot. I've read in other threads that it's just another thing for customers not to be happy with and honestly it seems like an expensive addition that I might have trouble getting the money back out of. Thank you for any help/ suggestions