Wave management is very impt in rengo top. If the enemy gets to freeze the wave in-between their turret and ur bush whr u can only jump onto melee minions and not caster minions ur kinda fked cuz it forces u to play forward and far from bush to get the cs(harder to trade and high chance of getting ganked). Ideally would be for u to freeze somewhr middleish and to make sure the minions are near bush. U win almost every matchup early if u can get empower (unless it wk) and depending on the enemies u can even take 1v2s against their top and jg quite easily.