Ian,
Thanks for demonstrating your complete understanding of the terms "MMS, MMD & Air-Load".
( Now to put it to use ), it would be helpful if you could puzzle-out why ( or offer-up a plausible theory ) why LHF member "patallen" has an OEM 2225H cone kit ( removed intact ) that weighs in at 105grams ( when best guess is that the 2225's MMD should be around 90 grams ).
Here's a pic of his 2225 cone assembly:
https://www.audioheritage.org/vbulle...1&d=1708384271
This "outlier" in measured weight is causing quite a bit of confusion ( from what I see ).
:)