Does it matter how close the pinched coin is in the front? As in whether it's being pinched by the first phalanx or the middle?
Imagine a scenario when performing, where you realise in a split second, that because of slight problems while performing the particular effect, you can either:
a) End up flashing the coin and hence everybody'll definitely know that that is where the coin was all this time.
b) push your pinky even more backwards so as to almost perform a vanishing pinky trick, hence nobody'll see the coin BUT they'll know something weird is happening (provided they notice the vanished pinky).
Which option would you say is at least COMPARATIVELY better in emergency situations?
If you HAD to compromise either on the invisibility of the coin or the angle of the coin being perfectly 45° or less, which one would you compromise on?