I just did this, and I immediately noticed 2 things...
My temperature/fan reading has gone up from 47/44 @2100rpm to 49/45 @2280rpm.
I'm also now getting TONS of 'discarded' showing up. I was getting 1 discard for every 8 accepted. I'm now getting 2 discards for every 1 accepted.
Is that bad?
Hi Melech, I installed the same FW on my Ants, and as you said, the temperature increased from 4/5C leaving the S1s at 48/50C @ 2220rpm. I use them to eat my home, and I get a nice 21-22C in the whole house

Michel