This is cool, the idea is great.
You need to subtract certain elements when the drop happens, most notably that delayed bit crushed lead. it'd be better if you let it drop out during the wub part and reintroduced during the build up part 1 and 2.
Your introduction needs to be shorter. Don't make the bass line go all out with the wubs, save the entire phrase for the drop. (1 wub on the down beat, every 2 bars)
total removal of the wub on the second build up.
between the 13 and 14 second mark is where i'd bring the drop in.
There's not enough musicality in this tune to warrant it to be 4min longs, at most it should be like 3min. With some clever musical design and better arrangement, it could be about as long as you wanted it, but you need to use silence and space (especially during intros/buildups) as a tool in your creation.