This is a very well conceived illusion and I am mostly satisfied with it. With sufficient practice
it can be handled in a seemingly casual way.
In my opinion, this illusion is best
performed with some distance between it and the spectators...maybe six feet away. At least that is
what I do with mine and that is because there is a slight reveal in the pen part of the gimmick that
most definitely flashes. Performing this close-up is not practical due to this flash which is going
to be continuous while doing the spin move. A well lit room makes it worse, of course.
I
may try to make my own and see if I can get it right. If there is no flash then it can definitely be
performed close-up.
If there is a problem with the effect it is in its brevity. I have
padded the wormhole-type discussion out a bit more to add to the mystery.
Overall, though,
a brilliant effect.
The instructions are most definitely sufficient.