Hi Greg. Sorry to hear you've been having difficulty.

If you haven't resolved this yet I recommend sticking with a coarser stone for a while. #1000 grit is plenty fine enough.

Make absolutely sure there is no burr.

If a new chisel takes much more than two minutes to be working the tool is defective, the method is defective or both.

https://youtu.be/6X02pCINfIg I'm not saying you should copy the above. But the chisels are as crappy as you'll get and I had no issues with them.

It is beyond me why such an expensive chisel should need so much prep.