Like everyone has said, it's a matter of personal choice. I will give you my observations and you can take them for what they're worth.
I have a GOSM and have been using it heavily for 8-9 years (it could even be longer, it's a ********* getting old and forgetful). I've done wet/dry both ways and pretty much have settled down to: if I'm GRILLING (propane) and it's something I want to hit with a dash of smoke, I use chips in a pouch and I'll wet them down, mostly because a grill usually operates at a much higher temperature, the chips will ignite sooner, and then ya gotta replace them more frequently. Now, when I'm SMOKING in the GOSM, I don't soak. The smoker is going to be running somewhere in the neighborhood of 225-250 (I hope). Much lower than the grill. I will mix chips and chunks. Chips to get the smoke started then the chunks take off (gently, of course), sustaining the smoke for awhile. Remember, you're looking for THIN smoke, not the heavy, rolling out all the sides kinda smoke.
Since joining this site about a month ago, I've also changed some other practices regarding the smoke box. It's impressive and sure does a swell job of doing it's job BUT I saw it mentioned that a few people will dump those ackward to handle while hot boxes in favor of a cast iron skillet, sized to fit the smoke box rack. I changed over and it's been one of the best changes I've made. I don't worry about a cover because I've got a water pan above the skillet that protects it from grease droppings. I don't have to worry about the chunks fitting into the skillet now. And I've got a handle to grab when it's time to add some more wood. Makes for a faster changeout/add.
Well, there it is. It's what I do. I'm happy with it and it definitely helps do the other part of the smoking meat thing a lot easier.
Others have their own take on how to handle this situation and that's great. As long as the meat comes out the way you want it and you're comfortable with how you got there, it's all good.
Have you gone through Jeff's Course yet? If not, you ought to take a look at what he's got going. It's a good starting point. Welcome aboard.
