I've got the new Viper and owned the older Viper. The seat provides enough adjustability to allow you to set up the stand without the bar being a problem. While it could get in the way, it won't if you learn to adjust the seat straps and position the upper and lower portions of the stand properly.

Additionally, the front bar has allowed me to catch naps comfortably 30 feet up and extended my hunting day. The sense of security with that bar in front is really nice.

Come rifle season, it makes a heck on a bench-rest too.

Just my two cents.

Fritz