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Brendan,
If you're getting a PE of around -+5 arc seconds then you have one of the exceptional EQ6 mounts and I wouldn't touch it.
Mine was terrible and not a nice sine wave shape.
My worm had a flat spot that was causing some significant trouble and that is what led me to get the new gears and worm from Aeroquest.
I had read that the components from Aeroquest were very good but I can't agree with that I'm afraid.
The Aeroquest worm is OK and significantly better than the Synta one but the fine tooth gears did not turn out to be very good at all and I ended up with a PE of around 40 arc seconds.
When I reported this to Aeroquest I was told that I would have to lap the gears to get good results.
I spent some considerable time lapping the gears but the best I could do was get the PE down to around 20 arc seconds.
That's why I decided to scrap the gears and go for the belts.
I could have just reinstalled the Synta gears but then I would be back where I started. Although with a better worm.
If my mount was as good as yours seems to be I never would have gone this path. A PE of 10.5 arc seconds is about 5 arc seconds better than the average PE for the EQ6 Pro.
Cheers,
Luke
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