Woops I must have bought the last white Gl-400 then. Anyway, I compared my friend's epiphone lp custom, and I must say, mine felt heavier and the buzzing sound is less when I'm not putting my palms on the strings compared to my friend's epi. Amp, amp settings and jack used were exactly the same btw.
But kinda regretted cause I didn't have enough time to try out all the guitars. Luckily though the first one I tried was good for me..
So yeah do try out some first even though the models are the same.