Hello, wanted to get a sanity check on a somewhat advanced maneuver.

The following maneuver, (its entered high inverted)

From level inverted, pull to vertical down, do a 2 point roll then 7 of 4 points in the opposite direction and pull out cross box.

How does one slow the plane down enough to do all of this?

Assuming the maneuver before was at normal (top) altitude at the completion of a maneuver like either a half loop or a vertical up with 1 1/4 snap rolls up.

Your thoughts welcome,

Don