Green heal does not crit,ACT shows 0% crit on it.
Also it shows a 20-25% crit on my cacodemon's infernal blast in latest raid parse so keep spamming those 5 points are useless .
Other than that i don't see any real use for chained shockstirke in a "Khitai pve build" except some trash encounters.It's a good feat but since brc days i find it quite overrated unless in speciific encounters.