Was able to run long transfer functions on the HAM4 ISI last night and got the data this morning. Again, I don't see anything unusual for the chambers state. Attached plots are for the tf last night (first plot, act to gs13) and the best similar tf from 2014 I could find (second plot). Unfortunately it looks like there was some rubbing or something on the old measurement, cause the data around suspension mode looks bad. Jeff hasn't posted B&K measurements of the new baffle yet, but unless there's something nasty hiding in the high frequency stuff (hidden by the purge air or whatever), looks okay.