Really...I consider myself pretty well versed at coin magic - I have been doing it much longer than you (just so you know) and I hang with award winning coin magicians and guys that are consider elite with coins - we all agree their are issues, I just don't find many people willing to deal with them.
Someone eventually...I hope even me...will handle this in a book or video, and you will all proclaim them a God.
The problem, even if your palm is perfect and misdirection is timed well, is that coin magic is full of lost leaders - and the level of deception is not always as strong as you might think. It is a game of "what hand is it in" or you have to load on the gimmick.
Do something with ONE coin that has meaning to connect to the audience and doesn't have the audiences head swivelling back and forth. This is really hard to expalin in text, without over writing - so you may have to read between the lines and think from my side.
Look at it this way - and I am NOT starting a coin vs cards debate.
When you do a retention vanish...where does someone look? The other hand, right? So to convince them, you have to layer the deception with more unnatural moves - hand washing, etc - in short - you have to confuse them, as you can never show the truth. The coin is still there - the method is obvious. When coin magicians layer moves - it looks more like juggling, than simple to understand magic.
When I do ONE phase of an ACR - and put the card in the middle, then show it on top. The convincer is - worst case scenario - they look in the middle of the deck. They can't find the card...they are convinced - and they did it themselves. (Although, just having the card signed, can remove the idea of "it is still in the middle, I digress).
I LOVE coin magic actually, and I am good at it - and I still see these weaknesses. I brought it to the group in hopes we could discuss and problem solve - so far, I have spent almost a year trying to convince people of the problems they are too blind or ignorant to see.
Which makes me wonder how experienced people really are in magic, to not see these issues that would be great to tackle to IMPROVE coin magic.
Good luck withy our palm to palm transfers, hand washing and thumb palms...no matter how you look at it - coin magic - although nice eye candy, needs help in the strength of effect.
Don't believe me - do a set of 3 coin things...your strongest - see what kind of reactions you get.
Then do 3 of your best Rubber Band effects...card effects....or three mixed sponges, cups and balls and rings...I don't care - coin magic is the second thing we often learn - it has it's own FORUM - but is one of the weakest forms of magic when it comes to strong standards in deception - aka - the complete package of an effect. If you don't know what that is, please don't trash me....start reading - if you do, I am curious on why you would disagree.
Thanks for reading.