Everyone is going to have a different opinion and I respect that.
Recently, I posted a thread about holographic energy clumping compared to regular energy cards. I can 100% feel the difference between official "Play Pokemon" holographic energy and regular cards.
There have also been replies on the earlier thread that people could actually see curled energy cards in their prizes during the hgss era.
All this to say, I don't think anyone needs to worry. This doesn't seem like the type of thing anyone is going to use to help them cheat. If you look through my cards, you aren't going to see or feel the difference in the extra sleeve. They are thin and barely noticeable. It you pay wicked close attention, sure, you'll notice but in real world circumstances, I don't notice a difference and no one else does.
All that to say, i will keep the rest of the sleeves on my person in case I do encounter a judge that has a problem with what I've got.