Get the Burn.
The magnum has a great hull, but that is about it. The outfitting is lame. The backband has no support and is very difficult to retrofit. The hip pads can be taken out easily enough, but the thigh braces are a joke and also very difficult to pad out. I also will put a plug in for riot. They are without a doubt the worst company I have ever dealt with as far as customer service. They will not help you, they will lie to you... basically they don't give a crap about you. The Burn is a great boat as well; without the downsides of having to ever deal with riot.