Iron Maiden 900 Million Death Blow Speedrun - 6m11s!

My current personal best time on this speedrun - 6 Minutes and 11 Seconds for the 900,000,000 Death Blow on Iron Maiden.

Getting a 6-way combo:
Shots that count towards combos are the left ramp, right ramp, left orbit, right orbit, small loop, and big loop. A 6-way combo is achieved by hitting these six shots in succession, in any order, without hitting another major playfield shot. There is no time limit! You can take a single shot, then cradle up and pause, then take your next one.

Steps to the 900,000,000 Death Blow, courtesy of Colin MacAlpine:
Qualify Tomb #4, but do NOT collect it.
Get 3x PF ready, but do NOT activate it. (If you drain your non-final ball during this step, your 900M Deathblow is still in play.)
Collect Tomb #4. (You're now "all in," and if you drain, your chance for 900M Deathblow will be gone.)
Complete a 6-way combo, with one of the ramps as the final 6th shot.
Use the ramp return to go over your lit inlane to activate 3x PF.
Cash in your Super Deathblow at either the Revive spinner or the Bulls-eye target (must be the true center of the bulls-eye).
Normal Deathblows re-award the same value as your highest Combo award of that Combo sequence, if the deathblow shot is hit as final shot of the sequence.