Yeah, they have to be tongue heavy so they don't become tongue-light when the garage is loaded. A heavy tongue requires more tow-vehicle capacity, but light-tongue can be a dangerous catastrophe on the highway. Even if it tows okay initially, one unsettling event (gust of wind, emergency lane change, etc) can induce uncontrollable sway.
So... if you can load the trailer to be towable with your rig (and not go below 12% tongue weight), will you be able to maintain that loading scenario all the time? If not, it might be time to go truck shopping....
