All the 4*60 kit built planes I've seen had the fuel tank completely behind the firewall and the tank was wrapped in foam. On my new ARF the instructions have you mounting the tank flush against the firewall with it's neck going thru the firewall then siliconed in at the hole. Then braced at the rear with a glued in block. To me this may eliminate any fuel leaks from a bad stopper or fuel line connection from leaking into the fuselage, BUT- I thought tanks were always supposed to be wrapped and cushioned to prevent fuel foaming. What's the deal, should I follow instructions, or plug that big hole and install the tank the conventional way with full wrap of foam?
Opinions are appreciated

Thanks,

Dwight Hayden