i actually always go fill in ranked so thats why i always land support. Jungle is like my worst role and what i always do is 'gank' a lane and stay there for experience xd.
I rarely do krugs as they are now annoying to clear early on compared to raptors, which have 5 small creeps but are squishy at least. my jungle path for lee sin is either enemy's red/blu, depending on where enemy jg starts(because gold < laners dont guard river), my red/blue, raptors/gromp, scuttle, wolves, and the rest is a mess.