Just saw your peek. Really don't know why you are so worried, it looks great. Only a magician, (and then not many) are going to notice your peek, and even if a spectator does notice your eyes move they don't know why. The idea of a peek is never going to enter their heads.
I have no idea if it is original or not. But not only did you come up with it on your own, but it is actually practicle. and you do it very well. In the context of an actual trick with some presentation I'm sure it is even better.
When I show an effect the audience can shuffle the deck and then have a totally free choice. And yet I force the card. The free choice is a matter of perception.
My previous point is, even with a peek, after they shuffle the cards you still have to handle the deck to get the peek. If then, you have to handle the deck after the shuffle, you can also simply force rather than peek.
Yes in the spectators mind there is going to be no difference. So why bother having this conversation? Because I still say a force is so much easier and you can handle the deck 'less' with a force. Done correctly it is still a free choice to the spectator.
Not even a peek is 100% sometimes, under pressure it is amazing how a heart looks like a diamond.
There is more than one way to force a card. Classic is not always the best, it is just the one hyped by magicians because we fan or spread the cards. However seeing as in a classic force you are just about putting the card into the spectators hand it is almost always going to be correct, (unless you are doing it wrong) it is as close to 100% as you can get.
Again, to each his own and I am not saying my way is the 'correct' way. Just like to point things out that we can all think about. There is no right and wrong. It is what works for us individually that counts.
My favourite peek, (and I'll put this in magician speak so anybody that doesn't know what we are talking about isn't going to understand anyway)
Take the t*** and Y**** with p***t**r***... just kidding, hah!
Serioulsy card selected is on top. Deck in left hand. Left hand comes up to your temple so your index finger, (which is pointing up like an antena) comes in contact with your left temple making it look like you are recieving a mental image. The peek is done as the hand starts to come up. With the left thumb you B***L* the card and then you just grab your peek at that moment.
Sorry couldn't resist the *** thing, but really it works give it a shot, just for the kicks if nothing else.