It's my favorite method for smoking while taking the train, now that the rules have changed in the US and you have to get off the friggin' train to smoke (instead of the damn smoking rooms they have ON THE DAMN TRAIN.)

I make a couple before I set out. I like removing about 3/4 of the tobacco in the cig, then taking about 2/3 of the tobacco I've removed and mixing it with my weed. I shove the mixture back in the cigarette (I found a bic pen is great for doing this) and then put the normal tobacco on top of it all.

I like it, tobacco has always intensified the high for me.