[Dafni]

I had 5S on the 1950/6. It works well indeed! But it is quite insane, to be honest.
For 5S I use the 1950/8... still insane, but gives better temps than the /6.
At the moment I am pretty happy with 4S setups.

Yeah, get the /8 for everyday use on 5S and the occasional 6S rush.