Hi Terry,
For polishing my kirby's from when I get them I use my bench grinder I got from my friend who is(or was) a kirby distributor.
With a commpound/s and for a quick polish once that has been done just to keep them looking good I use Autosol.
Arr mr Seamus.
Hope your ok.You never know when when you might be getting the royal call to visit my kirby's

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As for the Sentria Vs G6 thread Iv'e seen it.
If you get me started I'll find it hard to stop;-))
But the Sentria is the better kirby
For proformance and durability.
Sentria handles are better built I'v never geard of one snapping.
Sentria and G sixs brush rolls are different. Mind you so are the Ultimate Gs and the sentria.
So yes the sentria is the better kirby.
But I do love the Gsix as that's what I was demoing when I was in kirby and I do like the color black on a kirby.
And "ANY" kirby is better than the mordern plastic junk on the market!! Hay Ho!!
over and out

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