I posted some lengthy experience on this before, I think DPelletier will remember the thread. If I get time, I'll dig it up.
In a nutshell, I tow a 8000-9000 enclosed race trailer about 25k a yr. With 1000ish lbs weight carrying hitch weight (I use race car scales to verify) you will eventually have hitch sag due to movement/deformation where and how it mounts to the frame. Don't even try to tell me different as I've had it all apart and it's not the best design. (Don't mean to sound arrogant, but I design and fab a lot I've been pretty intimate with the 3rd gen set-up. )
The reese titan is beefy, safe, will do the job but is also lacking in design. It hangs Waaaaaaaay low, which is a nuisance and ugly. I had a a worn factory size spare on a factory aluminum wheel (my truck's a SB) and you can not remove the spare with the Titan installed (OK, I wrestled it onto my chest with two 2' pry bars). Reese "Could not replicate the problem" and lost interest in calling me back or resolving the issue- at least the dealer had the business ethics to let me return the hitch.
Stop thinking "Need a weight dist hitch" and start thinking "I really want a weight dist hitch" just like it was a bomb box or an ex brake. I bought an equalizer brand hitch which is unique in design- the SOB flat out works, way more than I could've imagined. Load and sway control, driving is much more relaxed and easy, even at faster speeds and going into corners a little hot etc. It's an extra 2 minutes or so to hook up- big deal, I might hit 60 seconds if someone bet me a beer on it.
That said, I tow my 7000/7500 lb boat without it, weight carrying. By design, less hitch weight and better handling because the axles are so far back there. That and I rarely go more than 100 miles each way.
Again, not trying to sound like a know it all, just sharing the experience of what I learned.