This trick consists of half a charge movement followed by a Reversed Pass. I think this trick looks better than normal Sonic, since it’s a bit longer and it includes more rotations (it has 1.5 rotation, Sonic has 1). If you know Sonic and Charge it’s quite easy to learn it (even if I accidentaly learned Inv. Twisted Sonic when I first tried it) and I don’t think you’ll spend much time learning this trick, wich is absolutely something every PenSpinner should know (yes, that includes you Mats).
Step 1: Hold the pen in the same position as if you were going to do a Sonic or Charge. Hold your fingers a little bit bent, and if you want you can have the rear behind you thumb in the beginning.
Step 2: Stretch out your fingers and bend 3 backwards a little bit, just like a charge.
Step 3: Continue the Charge movement but hold 1 forward at the same time, so the pen slips in between the fingers with 1 and 3 in front of it and 2 behind it.
Step 4: Pull back 1 so you hold the pen between just 1 and 2. Make sure the movement it makes completes the rotation it was making before you grabbed it with 1.
Step 5: Let the rotation complete and catch it behind your thumb.