I wouldn't waste my money getting drunk on Epic. After the first six or so you stop noticing the flavour (with any beer, not just Epic) so it's good beer and money down the drain. Might as well drink a six of epic and then switch to double brown if you wanna get your buzz on.
i generally start on meths just to get a buzz going then hit the good stuff, say a couple of pints and then get straight back on the meths. Works really well but my teeth have gone a funny colour....my night vision, come to think of it my day vision has started to suffer...