Just got back from my first test ride with a double darkside setup and my Tow Pac InstaTrike kit... Running double darkside and the Tow Pac is a MAJOR inprovement over the standard setup...
The darside setup normally yields a softer ride and with the Tow Pac kit on, the ride is quite pleasurable... The steering to me felt easier than the standard setup too - don't have any idea as to why that would be, but that is what it felt like to me... A little more riding is in order to verify that...
Now, if the double darkside setup actually results in increased tire mileage, that will complete the reason we went down this road in the first place...
Les