-you need to build around SWP gear mostly to maximize your burst potential, you need to gem in to spell pen(75 atleast)>spell power=haste, look up for gear with haste on it, fortunately there is a ton of gear with haste stat in SWP
-there will be more than enough sockets on SWP gear to get atleast 75 spell pen, and you'll be left with some extra sockets
-sadly, i cant explain properly why you shouldnt use gnomish trinket, but based on my personal experience crit is completely useless and the shared cooldown with hand rocket is pissing me off, any pve stat stick or proc trinket is a better choice IMO