Trade for what sinew? I thought the sinew stuff was all BoP but ive been out of the loop on hunters for like 6 months. My only regret in having stopped raiding is not getting a Leaf for this hunter first.
Anyways...
Kite the Slayers. It takes me about 4mins per mob but it is piss-easy.
I grab a high DPS pet and turn off taunts on it. I start off with a conc + aimed + immolation trap. Get into Cheetah and stay in Cheetah. Tag distract shots at times. Once you get the burst of taunts going just stick to concussion shots and maybe some serpent stings.
I train them straight back down the road. Off-hours, i have little trouble with getting ganked.
44 kills - one eye of shadow, bunch of greens, average cash: 18s