Just wondering what the consensus is here?!

I think it was Jonathan that said the Chinese spindle were about 80% efficient, so for an 800W spindle surely I'd be looking at a meager 160W heat dissipation, therefore for short jobs (say 20-30 minutes), do I even need to bother with all the pipes plumbing and copious amounts of 'watta'?

My thinking here is the spindle body is one helluva heat sink, as is the spindle mount & the Z axis aluminium backplate...so perhaps for short milling jobs (as I typically do), I might not even have to bother?