Im still running an old sr v2.2 fork, and its holding up strong. Its made of DOM tubing, so its heavier and and tad bit weaker than chromoly. It doesnt weigh down the front end at all, so I would say go for the senior. And judging from the gif pic in your sig and some videos ive seen of you, you should definately get the senior
I think you just helped make my decision
Only reason i'm unsure about the weight at the front is that i rode a pair of SOA forks a while back, (IN THE PICTURE BELOW) and they were made out of steel, Don't want the weight to get annoying.