“Watch the card” type comments are implicit challenges for people to sniff out something funny. If the dirty work is done elsewhere or not done yet a “Watch here” type comment might be a bit of misdirection. If a “watch” type comments is said or implied when and where the dirty work is happening it is often a demonstration of skill.…gambling demos for instance.
You are starting to get the mechanics of the move, keep working on it until you are able to be more centered on the mat or table. Work on your regular deal. It switches noticeably, one you grab the right side of the card, the next deals you grab upper left. The effect you are doing has people watching when the dirty work happens, they may not know what happened but they know something did happen.
I think the sleight would have wonderful applications when used with misdirection or used in the offbeat.
Thanks for sharing!