How often are you surprised that you have not maxed out on a Fellow Flutheronians, especially after many years?

I guess being judicious with the Atta boys has its dividends, I find some Flutheronians who have been around as long as I have or longer where I thought I maxed out on, I have not. I don’t know how many is left in the tank but there are still some left. Do you find older Flutheronians you have not maxed out on, are all but the newest or mostly inactive Flutheronians are the only one where your Atta boys register?