The rolling resistance of the tires will usually have a bigger impact. My plan is light wheels and light tires with low rolling resistance. But I'm going to wear out the originals, at least for a bit. I will say that if you like them equally, the weight diff is a good tiebreaker for your decision.
Is every truck tuned individually from scratch, or is there a baseline library assembled from all the prior trucks already tuned? I'm not at the 'ready to buy tomorrow' stage, but this is on my radar for sure. I had a lot of fun modding a '95 Miata years ago, with head work, exhaust, intake...
When I was in NH with a riding group of around ten, there were a couple of 1UP racks, a couple of Thule racks, and a couple of the Kuat NV 2.0 (this was after I sold my 1UP and got the Kuat). Some preferred the simplicity of the 1UP, but most of us preferred the Kuat. I've since moved to FL, and...