HC is not actually a place where we are supposed to give advice - but, we can suggest --
here's a pretty wise suggestion ------
don't try and trick the Tax department --- they have the ability to make your life complete and utter crap --
it's just not worth the tricks if you get flagged - - you life can turn from lovely to a pile of dog crap in one easy act --
if you do what your accountant tells you - at least, you are able to say - that's what I was told.
It's simple -- if you buy 20k shares - and, you sell them for a profit - you trigger a CG event ------------ simple -
if you buy the same stock for less - etc etc - all you will do is confuse yourself - which, it seems, you have done already.
Until you really are across the rules and are very confident ---- the suggestion is to not wave red flags at the tax bull - because if he even notices you --------------------- hmmmmmmmmmmmm
you life will be anything but boring