Well, you have to understand that you can only make a Triaxis sound like a Boogie.
Some of the sounds are not that bad, they just sound like they need a great power amp and a little TLC.
Try using a good parametric EQ. It can make a world of difference with a Triaxis. I have a pair of them, one in my main rig, and an extra paperweight. I personally use it for some bluesy/ rock sounds. Never for clean or for super heavy. It just doesn't do those well. I always combine it with a TC Electronic PEQ.
So just give it a little more tweaking, and add a good EQ, and you should get a boatload of sounds.