BonnerBB,
I know your thread at T120 well. I used a ton of information from it to decide on my set up. Along the frame rail right behind the tire is where the ride hight sensor are. Where you adjusted the actual sensor bar, I just added washers(actual bolts) in between the bracket and the frame rail just as the picture in the thread I posted. I will try and get some pics soon. This does add air into the bags just like your adjustment does. I am still thinking of using the airbag spacers for the reasons you mentioned. You can give Wil a call at Seirra Expeditions. He has all the details. We have no idea when mine will get in. I am happy with the ride right now because I will be pulling a small trailer, so the extra air will not be noticed as much.
TexGX