I feel like we talked about this before, but did you gut the insides of the muffler when you modded it on your 2511? IMO, you're leaving power on the table if you don't split the muffler and rip out the divider on it.
I've got a 2511t that I gutted the muffler on and I preferred it to my muffler modded-only 201tcm. It didn't even seem that far down on power compared to the 201, but was quite a bit more responsive. I ended up porting the 201 and it's an incredible saw now, kind of made it a harder decision to choose saws.
I hear you on the weight, I was dealing with some tendonitis in my right elbow most of this winter...at it's worst, I couldn't even run the 201 in the tree. I'm almost all healed up now, but I realized how much I like a lightweight climbing saw.
Full disclosure, I have no experience with the 194. The closest thing I had was the 192, and the 201 and modded 2511 stomp all over it.