Loop entry speed
For our over the top maneuvers, the loop and barrell roll we us 180kts true minimum and pull smartly to 3.5g's and then ease up and about 1/2g float over the top and back to about 3.5 on the pull out. This gives us nice round loops. Lead is also playing the power a bit. adds a couple inches on the upline, back smoothly about 3 or 4 inches over the top and keeps it back until the G's start coming back in the pull and then back to entry power.
It's easy to follow on the wing this way and gives nice round loops.