Chim;
I did - as a matter of fact, I did let some air out of the rears as a result of reading one of your posts. However, I don't have a pressure gauge (I just never think to buy one when I'm out), so I was reluctant to let too much air out. I was also concerned that the tire bead would pop off or I would otherwise damage the tire by airing it down too much.
I think that you had said that you let yours down to about 7 lbs. When you do that, is there a noticable bulge in the tires? In other words, if I air down the tires, can I just eyeball it to know if I have enough air left in? I have the R4's like you.
Thanks.