I have a viper also, and I dont have a problem shooting my bow out of it. Im short (5'6'') and Ihave a 32 ata bow.

One thing, I do is adjust the seat straps for height. For gun hunting I adjust the straps so I sit lower and I can use the bar for a rest. But for bow hunting, I adjust the straps so I sit higher, so its easier to stand up and clear the bar. Just be careful reguardless.