I been doing this in the corner.
5aa, 5b, sj.5c, j.b, j.a, 5b, 5c, 2b, j.a, jc.a, 236a, 236236D [hold D], explode it when they are close from falling, 236236C [mash C to explode asap]. Does 3.6k-4k
if you end it with circus bear instead of another rocket I'm sure it'll be way more...but i haven't figured out the timing for it :X