Stop in for a cup of coffee

Think you answered the question. Those springs hit fast. The long slot one slows it down on the high end. You can get away with changing the other to the Mr.G. You would be surprised how many I get in with two of them. Have a bunch of them for Carlisle new and used.
That stock light spring and the Mr Gasket spring works good in my 273. It's a 4 speed but I don't rev it and side step the clutch. (rarely) LOL