Did this combo with 36o mg of dxm and 1.5 to 2 grams gabapentin and had a decent time, It seemed to make the dxm more lucid and a little less "out there" than I normally feel on the stuff, although I'm not the best judge as I use dxm very infrequently. I also consumed all 360 mg in one go instead of titrating up for different dxm/dxo ratio. Would do again though, was lucid enough to move about with dexterity and dumb enough to play recon commando in a muddy construction site with a similarly intoxicated friend.
I'm realizing that that is a pretty bad description of the combination unfortunately. It was hard to pick out the effect of the gabapentin, the effects of which are so cool but are always subtle and peripheral. I found the dxm headspace to be markedly less jarring and confused than normal however, motor skills/fine motor skills less impaired, cognitovely able to handle spatial thinking at a level that would have become more abstract and impaired on just dxm. That or maybe the anxiolitics of the gabapentin made me less bothered by my impairment/confusion/disorientation than usual.