I have a Soap Vision vender as well for over a year. I would say keep the single vend boxes, at least one row of your most popular products. I like to keep options open for the customers to decide. Since the configuration of the vending products were designed by myself at the time of ordering the vender, it is custom made to a certain degree, and I wouldn't know how to alter it. Can you reconfigure it yourself ?
I've done some minor tinkering with the machine. I've added and moved pushers and even upped the voltage on one of the conveyor motors. So far, I have not had to call Vendrite for advice or help but I've not done a total channel reconfiguration yet either.
I recently had a problem with my 24 oz Mr Dew bottles not moving forward when that selection was made. I quickly discovered that the conveyor assembly was not centered in the channel on the front end. I fixed that and then discovered that the conveyor was not centered within the conveyor assembly. The conveyor was not fully on its rear sprocket so I just pushed it all the way on and that channel is now working perfectly again.
The Vision vender has no less than 5 circuit boards (partly why it's an expensive vender) and has steel trays rather than plastic like most glass front venders. I really like how the condenser coil is right up front so it's easy to see if it's getting dusty. The sure-vend sensor system in the elevators is still somewhat of a mystery to me but, as long as it's working, I'm happy.
"Good judgement comes from experience. Experience comes from bad judgement." Larry Adamski