Jelco Easy VTA on the Fly

@cleeds Dang, I was hoping there was a formula or someone else knew!

@stringreen Any idea what difference in VTF occurs for every millimetre of change to VTA? 

You can't have both. The EasyVTA includes a special base which apparently has "tighter tolerances" than the standard Jelco collar. No idea how it compares to the Ammonite base. (I have 2)
If you want er, easy VTA, this is the best way to do it. 

@lewm in fairness, it's something that is useful and an extremely niche, enthusiast product. 
@gary7  these are cheap knock-offs of the OP's product, which looks and apparently is a more highly engineered device.

Hi António,
Do you have the upgraded version in black?
Do you know if it works with the Jelco TK-850? (cross-posted)

António, Well done... but can't see link.

I have 2 x 750L on 2 Garrards and love them. One is modded. See V.Sys.
I have heard good things about the 850. Hopefully it will be an upgrade. No mainstream reviews although Fremer checked them out at AXPONA. 

Thanks for the update. My new Jelco TK850L is in transit.

I guess they have their issues sorted as it is on sale on a US distributer site. 
http://hotvalveaudio.com/product-category/easy-vta/

@raceone Any updates?

My only concern is if the structure affects the sound in ANY negative way. 

I’ll give it a shot. Do you have to make any mods to the arm? Do you have it for sale on audiogon?

Interesting. So you are also replacing the wobbly base with a better one?