Sorry but I am afraid your technique is all wrong, the WC is perfect and you can't have a duff one. 
My standard 14 reg WC had an awful gearbox with lots of crunching up and down particularly between 1-2-3. Thought if might get better with more miles but it didn't. Changed it for the Adv version last month and the gearbox on this one is certainly smoother.
Guess it is just pot luck as to whether you get a decent one or not.

My standard 14 reg WC had an awful gearbox with lots of crunching up and down particularly between 1-2-3. Thought if might get better with more miles but it didn't. Changed it for the Adv version last month and the gearbox on this one is certainly smoother.
Guess it is just pot luck as to whether you get a decent one or not.

but as I have just read the experiences you had with your bikes I can put it down to lack of mechanical sympathy from previous owner 

