MMM / Neu Motor timing

[hoovhartid]

I was hoping someone could explain what changing the timing does and suggest the best timing for the MMM and a NEU 1515/1y and 1.5D

I did a search to find out what most people are using...or for any info in general, but I have not found much.

Most seem to be running the timing on the lowest setting, but I have no info as to why?

I set mine to lowest, but only because I had read Patrick suggest it for keeping temps down.

I'd feel better about it if I didn't feel like such a sheep.

I'd like to actually know what its for.

So Maybe someone here can explain the Timing settings to me and explain why one setting would be better than another.

Thanks in advance,
Jarrad