Jeff, glad to hear you noticed an improvement. They should be like night and day from stiff Superlift, Skyjacker, etc. coils. Compared to others like WH and BC, there is probably not as much difference until your flexing, cornering hard or bottom them, then the progression will come into play.
Saddleup, which Rancho are you running? I have the older RS9012'a and they are plenty long and my rig flexes quite a bit. I just looked at the
Rancho Specs and they list quite a few in the old RS 5000 and new RS9000X line in the 14" + travel range. They also list one I was not familiar with, the RS99036 that has 15" of travel!
There's llikely better shocks out there, but if you're otherwise happy with the Rancho's, they probably have one long enough since I'd be really surpirised if your using a full 14" or 15" of travel having just gone from some stiff coils. Heck, lots of guys with copilovers buy the 14" travel since that's all they can actually use. If your only maxxed on extension, you may be able to relocate your mounts if there is unused travel during compression. I always install a zip tie on the shock shaft down towards the shock body. This way I can see what the maximum compression travel was during real world use on the trail, simply look at the end of the day to see how far up the wiper pushed the zip tie then push it back down to check again another time.