I'd like to point out that Jitbs actually provide a smiteless leash on blue - I prefer to save the smite, immediately pick up red, and do an early doublebuff gank. It's also worth noting that only 4 Jitbs will survive to golem spawn, unless you're heavily spec'd for CDR, as they only last 60 seconds out of combat, so any placed before 0:55 will have disappeared before the spawn.
To keep my post relevant and avoid appearances of thread hijacking, I'll ask a question as well: How does one play Lee Sin effectively?
I main jungle, usually tanky champions with lots of CC, and when I tried Lee last week during the free rotation, I failed hard. I didn't feel like my ganks were effective, and I never felt strong in teamfights... if I went in, I'd get crushed, and if I hung back, I didn't contribute anything. It feels like Lee does his best work defensively, shielding and peeling for focused teammates, but beyond that he doesn't seem very useful. Thoughts?