Then, about your land base: I reccomend to clean up here. My golden rule: "If it always enters tapped, it needs to have a significant effect". After the clean up, Circuitous Route should become less interesting, better replace it with Cultivate, Rampant Growth or Skyshroud Claim.
Yes I know, thats my first attemp for a more or less budget mana base. If the rest of the deck is ok, i will have a look at the mana base.
Well, even on a cheap budget, I prefere not to use the tap lands. Especially in green decks, there is ALOT of ways for colorfixing without using them. But okay, at this point, I tend to prefere speed. If you play a tap land in turn 4 (assuming you missed no land drop), you're manawise still in turn 3. If you have no 4 mana drop, it's not a big deal, but if you have one, this may delay your whole
game plan by one turn.