X5 centre pulley: Which do you use / prefer?

[Kusal]

It says it all in the title, which X5 centre pulley do you use / prefer; the machined X5 pulley (16T) or the XX4 pulley (17T)?
What are the big guns running?
Thanks!

[Lee]

I think most of the team are now running the machined centre pulley with a roller bearing to stop the belt lifting. The losi one still does a job though, just keep it for a spare but the machined ones are very nicely made and are of very good quality.

[Northy]

[usafaircrew]

The machined ones run very smooth.

[Gayo]

Losi's for me. They run true, have more belt wrap and are cheap as chips

[njt]

serpent s400 pulley for me, centre drilled out and shimmed to suit the layshaft. its 16 tooth and made from alluminum.