Yes Fitsu you can google it. I couldn't find other people's testing to confirm the non weapon speed scaling with phantasm, but there are threads about this with haunt. You are right that pets work the way you mentioned.
I still personally much enjoy this setup and the numbers/mechanics still work out well in its favor for me personally.
Since I'm back to having my gear on my WD most of the time: tho the main hands swap btwn thunderfury / mojo and the furnace depending on torment. 1hand + offhand for torment 3 or lower, 2hander for T4 or higher atm just due to the procs. http://us.battle.net/d3/en/profile/justus-1571/hero/118874
I still personally much enjoy this setup and the numbers/mechanics still work out well in its favor for me personally.
Since I'm back to having my gear on my WD most of the time: tho the main hands swap btwn thunderfury / mojo and the furnace depending on torment. 1hand + offhand for torment 3 or lower, 2hander for T4 or higher atm just due to the procs.
http://us.battle.net/d3/en/profile/justus-1571/hero/118874
I'm not using this build at the moment, but am happy to find a put together guide with mechanics explanations etc =D.