Rolling scissors is basically 2 planes doing hi-yoyos to try an prevent an overshoot trying to get behind the opponent ... while the opponent is doing the same thing........
I hate to split hairs here but the above quote is slightly incorrect.
A "yo-yo" is a maneuver designed to PREVENT an overshoot when coming in on a bandit who is slower than you. This is OFFENSIVE.
A "scissor" is a maneuver designed to CREATE an overshoot against a bandit on your six....for example after a bandit Yo-Yo's onto your six. This is DEFENSIVE
One may counter either a High or Low yo-yo with a roll away or split s. However if one employs a yo-yo then one has energy. A yo-yo is designed to keep your forward speed and energy without sacrificing speed in a high g black out pull for a gun solution.
So it wouldnt make sense to follow into the counter move. It would be best to use your energy to climb away and reset your angle off tail to the bandit for another "high sides" attack or bug out.
A "high speed yo-yo" is the one I am describing (verses the low speed yo-yo which is another matter). One may continue a series of these if one missed the first gun pass. This is typically done against a bandit in a much slower plane such as the SBD, stuka, or perhaps a bomber. Using the high speed yo-yo against an equal plane will result in only one pass before the bandit becomes aware of your position and counters. And being in an equal speed plane there are many other options to employ here besides scissors especially if the attacker bothces the yo-yo attack.
The scissors are a stricly defensive maneuver because if you are trying to scissor then the bandit is on your six.
We must distinquish between OFFENSIVE and DEFENSIVE maneuvers. If you go from an OFFENSIVE maneuver into being DEFENSIVE then you did something wrong.
Therefor if one employs a yo-yo against a bandit then one should stay OFFENSIVE.
However, if one chosses to stay engaged and is countered by a barrel roll or roll away this will progress to scissors with both planes being equal in energy. The defensive plane (the one in front) will emply a scissor to KEEP speed while flying a forward velocity vector. The offensive plane ( the one in back) will be going for a gun solution and attempt to stay behind the defensive plane.
I must stress that scissors are not a series of yo-yo's. A yo-yo is kind of arcing wingover while KEEPING speed (wingover's typically involve LOOSING speed). A yo-yo is one time maneuver initiated to get closure for a low G gun solution against a slower moving bandit than yourself without overshooting into his guns. However, one can employ a series of smaller high yo-yo's against a "turning" bandit who continues a flat turn. Providing the attacker can maintain a speed advantage over the bandit. IF not then this will progress to scissors if the bandit can make the proper counter defensive moves.
Scissors involve a series of flat turns or barrel rolls which are not in any way related to a yo-yo.