I don't know, it might be interesting. If you want it to be more present and powerful sounding I like to put a bunch of reverb on it and pick out some frequencies in the sound and crank them up just so it's a more intense sound (depending on your style of course... I do mostly hard rock with an overall very thick sound). If you like the doubled guitar sound maybe try putting a chorus effect on it, thats supposed to simulate a multi source recording.
With that said, I don't know if it really applies, but I heard Metallica do a solo where James and Kirk both played at the same time in Whiplash on the live shit: binge and purge box set. It sounded messy cause it was live but kind of interesting. It's all what sounds good though, right? Give it a shot, if it doesn't work you can always cut one of them out.