When you are dual wield for some reason according to other testers it only tracks the offhand strikes and that tracking may not actually be accurate, the combat log could be reporting things funny. Remember this is not the same combat log was we had in vanilla, this one could work a little different. Also one of the observations shows that there is a delay between the proc itself and the combat log. Any of the following links can take you you the parent thread on this.
Did some testing too on a single mob in blasted lands to not have some flawed data (no difference in armor or level)
Over 4995 auto-attacks: I had 92 procs registered (I was at 82procs at 4000 so obviously got unlucky on the last thousand).
Some of them registered damage in the OH’s range others registered damage in the MH’s range and I ended up with an average 20 below my auto-attacks average (pretty normal with the little data for the procs)
Over 1320 Sinister Strikes: got 19 HoJ procs all …
I just got done testing. HoJ isn’t bugged, recount is. Other damage meters might be as well. Basically, when you get a proc off a white hit, recount is ignoring the actual extra strike from HoJ, and looks for the next swing, and records that as the extra strike.
As for proc rates, I saw about 2% chance over thousands of hits.
I just ran a UBRS with HoJ and Recount active.
18 procs from 921 melee attacks
This is a ~2% proc rate so it seems to be correct (need more data to really confirm)
The damage however seems to come from my offhand.
I am using Core Hound Tooth + Distracting Dagger as weapons.
Here is a recount screenshot:
https://ibb.co/ZX28TZT
Damage meter addons log info from the combat log. So if the addon is wrong then the combat log is wrong. Which is unlikely that it is. There’s no way to know for certain unless someone tests it.
The only way to properly test it is to get a 2.8 speed MH and a 1.3 speed OH and go do 10,000 melee swings and see if HoJ melee has variable hits to indicate that a MH proc occured. Otherwise it’s safe to assume that it only procs OH melee swings on melee HoJ procs.
Both the 2% proc rate and abilities…
Sword specialization seems to be working the same way. I’m not 100% sure because details doesn’t show sword spec procs, but it seems like when sword specialization procs on your OH, it just makes your MH swing faster. Like if I was 1s away from a mh swing and it procs on my OH, it just sets my swing timer to 0.