Yes im thinking the ps540, along with the 115i, wore the 45mm whereas the 111i got the 44mm... but if i remember, both rated at same power due to port design?
Reason for inquiry,
Just picked up another smurf saw in this series, so now i have 3 runners and two fairly complete parts saws. Great saws but a bit boring, id like to warm one of em up and of course wanted to start with the lagest jug. I wouldnt be scared of another mfg jug either so long as the bottom holds up.