I usually hang out on boat forums!
Gary, if you are satisfied or convinced that your Currie SUA set-up has not provided you with enough travel & articulation, there are a few things that can sometimes help in fine-tuning it to get a bit better, but I wouldn't expect huge improvements if you have already done some things.
Better greasable shackles, better bushings, different spring rate, better shocks, better swaybar set-up, better tracbar/panhard bar set-up, better steering set-up that allows for the steering links to "twist" more freely & without bind, plus a few other things is about all there is for a SUA set-up.
Unless you are possibly looking to go SOA, the above is about all you can look into for potential improvements. Sometimes the shocks are limiting things & often if the tracbar and swaybar are still in use, those will hamper travel & articulation.
What types of improvements have you done to the Currie suspension?
Are you still running the F&R tracbars & front swaybar? If so, are they stock?