I have bow hunted out of a Summit Viper for a number of years. The only caution I would have for you is to be sure that you position the foot platform and the seat close enough together that the front rail does not interfer with your lower limb as you shoot over it. You should also be sure that you are standing close to the rail to prevent your bow or string from contacting it. I am rather tall at 6'6" and can shoot over the rail quite easily and it has never really been a problem for me but I can see that shorter hunters may have to adjust their style to accommodate the rail. When getting ready for the shot, I always touch the rail with my leg so that I always know where it is without having to look at it.
Best of luck to you this year.