i dont know, i think if people can find out how the trick is done by watching a clip, which is not an imprompt performance but one which is made perfectly until the effect looks the best it can me then it deserves to be found out
maby the trick isnt worth buying if people watching a clip can tell how its done, how long would it take a spec to realise
Surprisingly not. When you watch a trick on a video and you have the option of playing it again, it's no wonder you can work out how it's done!
As you learn more and more magic have you noticed how things get easier to work out? Yes? Well this is because you know about more methods, so they will quickly run through your mind as you wonder how it was done.
Basically you are thinking like a magician not a lay person.
By the way your post was hard to read due to the lack of punctuation (particularly full stops). Please give it a go, or it will become a habbit of yours.