Hmmm..
I'm not into going into the math(s)..But it does seem a strange distribution, viewing from the seat of the pants...
I don't really understand the SPA they are doing here...but I would've expected more changes in the RMSDA than what we have seen to date!?

One has a feeling for these things...being a cenobite and not math or penguin compuer thingey!

Bio, Stats, Maths,..and Linux!! eeeeek