Worst thing about synching is that CPU usage. I swear I could have fried eggs on my computer case while it was doing it. Had to actually open the balcony door as I feared it would overheat and shut itself down.

Seems like this bandwidth usage varies a lot. Those numbers for 31 connections were BS as I'm getting more with 20 now. (had some jumps to 25 kB/s) also updated the snippet with with 15-16 connections in previous post.

Maybe I should write a script and let it run for few hours to count averages with connections fixed to some value (I guess this can be set in config file.)

It would give a better idea of the bandwidth needs. I just have to remember not to download any pron while I'm at it.