The tap and go method (tap see if shiny or not, no shiny exit) works more for those non meta relevant cds like the chikorita where u just need 3 shiny for 3 forms evolution
But for the past larvitar or the upcoming beldum, likely will still need to catch for candies especially if want to evolve 3-6 metagross for movesets
I will still use the tap and go on feeder bus, eg if see 3-4 spawn quickly tap and see any shiny, if no shiny then just proceed to best effort catch
ah, i have always thought that the shiny rng calculated based on the number of seen and caught, then again seen here mean the mons ran away?
or just tap and go? interesting, me should try this new method for shinies..