I might have one spot left on this group buy. I am checking with Rogue. There was a delay due to some mis-alignment spacers and supposed to ship out today.
http://www.fordraptorforum.com/f195/**-rogue-upper-control-arm-group-buy-gen1-**-57992/
I wouldn't say that an aftermarket UCA is going to be a "HUGE" improvement. They are stronger of course and allow you to change out the uniball instead of replacing the entire UCA like stock. The adjustable one like I have in the buy allows you to get slot deletes to lock the lowers and do the alignment from the UCA so you shouldn't have to mess with future alignments other than toe. Or make some adjustment that you normally cannot make. Perhaps a little bit more travel but nothing to really consider. The biggest improvement with an aftermarket UCA is if it provides you more caster than stock. These Rogue ones get you closer to 7.0 vs 4.6-5.0 in stock. I just got an alignment and I was sitting at 6.7/7.0 on caster.
Getting the UCA that use an aftermarket knuckle like the RPG bolt kit, that has some definite improvements of how it cycles.
If you are wanting the Rogue, RPG or ICON with the new delta joint, I can hook you up. Send me a PM if interested.