Jelco VTA on the fly

I agree mines a little sticky and it seems to be the alignment of either the rod or where the micrometer goes into bearing.
Also, the threads on my knurled set screw were very poorly cut and seller says “I’ll pass it on to manufacture” he didn’t care about my concerns one bit -I was just a sale to him.
lost business as I have 2 other arms that are compatible with the easy vta...... 

I’ve had mine for quite some time with no issues. First had it on my 750l and now on my 850l with zero issues. I purchased mine from the eBay seller from Great Britain. Has been flawless and would by another.

@trknomo Good to hear. The jury seems to be out on this. I wish there was a good review available. 

Much better option I'm sure.
https://www.ebay.co.uk/itm/303172626703