Better steering and control

In addition to the CHF and reduced tire pressure, too little front end +caster can manifest itself as loose steering (and wandering) at highway speeds. FYI

No, have you tried the cheap handling fix and weighed your rig and adjusted PSI? Both of those are free and should be done before you spend any money. Weighing and setting psi should be done regardless.

I did the CHF , it took me about 20 mins in my drive with standard tools. Amazing improvement in wander, wind push and overall control and handling. Also, once I weighed my rig and set the psi according to the tire manufacturer's site, it really smoothed things out. The PSI in the tires from the dealer was about 15 over and it rode like it had steel wheels. Now it's pretty smooth on all but the worst roads. Both fixes took minimal time and out of pocket expense was about $8.00 to get it weighed. I wouldn't even consider spending anything on a suspension or handling upgrade now.