I know this is Epic, so the tech-fixated people are likely to jump down my throat for suggesting such a thing, but I just use 2-part epoxy from the hardware store and have found it works like a charm.
I mean, these aren't race skis you're talking about--those you want everything to be as capable of taking a structure and perfectly holding wax as before. If I had race skis, yes, I'd take them to a tech or shell out the bucks for a p-tex gun (cause I've never had any luck doing a righteous job w/ the candles).
But you're talking about all-mountain or freeride-type skiing, where dinged bases hardly even matter unless the hole's so big it has its own event horizon. So for my money, and for my well-tuned rock-hitting ability (I have to make repairs after just about every trip up to the hill), epoxy does just fine. And it's really cheap, durable, doesn't fall out, scrapes smooth, blah blah blah.
TIPS: I use the 5-min two-plunger type dispenser. I back-cut the area of the gouge for positive mechanical connection, and to straighten up the torn edges. And I don't recommend the epoxy treatment on enormous gouges (over 1/2" wide fer instance), as epoxy will crack if asked to flex across too large a span, and in my experience, that happens around 1/2". Interestingly, you can fill as long a gouge as you want, along the length of the ski, and cracking tends not to develop--just keep it under 1/2" width-wise.
I've been doing this for at least four or five years now, and have had zero problems. Other than all my *%$*# friends now bringing their skis over for me to fix, that is.
BTW: Overfill it, and let it cure a few hours min. before knocking down the patch w/ a sharp metal scraper. I keep my patches fairly flat while they cure by laying strips of scotch tape over the wound, and that reduces the amount of scraping I have to do later.
Hope this heresy proves helpful to you; have fun at Squaw,