Wasn't it John Wardley that had said the trims are only there because without them the ride would pull negative g's - and that would then rule out Th13teen as being a family ride as it would be too forceful/stressful for the family market?
Yes, John Wardley did say that at the Thirteen evening a couple of years ago.
I have to agree that Thirteen does feel faster now, I believe that they have adjusted the trims slightly so that is not trimmed quite as much. The new structure is merely to allow easier access to the second trim brake. It really does need painting black though as it looks awful at the moment.