red x not at 100% and outside 1.055 doesn't seem to make the best red beer if that's where you are headed. in this case, I'd use carared instead. its a real nice malt contribution and gives a nice amber red color to your beer, without bombing it with crystal notes. i d go about 90-92% rye base + rye and 8-10% carared.
I'm going to go ahead and do that this weekend.
Thank you