Getting the gear weight entirely off the bike and into a trailer might make the most sense, but if that's not your preference, you can move quite a bit of weight up front, maybe all of it. You will never stop the rear wheel from taking most of your weight, so moving gear forward might help. I've gone with most of my gear in stuffed, Ortleib Back Roller Classics mounted on my front rack. Not great in a headwind, and sometimes I feel like I might do better with some (but not most) of that weight distributed towards the back, but for the most part it works well. If your front wheel is built as well or close to as well as your rear wheel, it makes sense to give it as much of the load as you can. I like the way the bike handles, too, compared to when all the weight is on the rear. I may try and go with four, smaller bags in future, but even then I'll be trying to but the heavier stuff up front.