Update: Level 4 completed...was a ton easier than level 3. Only difficulty was that there was no super jars within easy reach.
In case anyone is wondering why i jumped into the ditch with the fat alien only to high5 glich over the wall, it's because if I didn't toejam or earl would have hit a Hyper Funk Zone and this is quite undesired.
Also, I do drop a lot of seemingly meaningless jars. Reason for this is verticle height control. If I do it immediately after a jump I shorten the jump height. If done near the peak of the jump I can leangthen the horizontal ground covered in the jump.
One last thing I feel that may need explanation is the reason I always jump before throwing jars is for 3 reasons. A: Still moving in one direction or another while throwing. B: Can move immediately after hitting the ground whereas when throwing from the ground there is a large period of time where you are immobile. C: You can fire off the proceeding jar much quicker while in the air as opposed to being on the ground.
http://dehacked.2y.net/microstorage.php/info/5238/TJ%26E2.gmv
Enjoy. And let me know if you see at any point either a route that may be quicker or possibly something i overlooked. Any sort of constructive criticism is much appreciated.