This hits it on the head, I think. Some people have this experience with the P28, and others find the heel curve of the P28 effective. In my opinion it comes down to whether the user can effectively use the blade as a two-in-one, with two different techniques or approaches depending on where the puck is on the blade. This is somewhat demanding of the user, as it requires solid feel and feedback or lots of looking at the blade, which doesn't really work. @Cavs019, I respect your views and often find myself in full agreement when I read your comments, however I must disagree with the description of the P28 being completely straight and closed relative to the P92 and P91, because to my observations it does curve right from the heel and the top of the blade doesn't curve in step with the bottom, creating considerable loft. It plays this way for me as well. I've encountered met many others who don't have the same experience using the blade though.
I would suggest just trying out a buddy's P28 stick during warmup and on a shift or two. Try that a few sessions and see if it can work for you. Incidentally, I didn't discover the flutter effect personally using a P28, but a Leino Pro, which is essentially a Kovalev Pro x P28. It has both a very similar toe curve and that shaved heel portion where it's flatter like on the P28 or P91. I just went to a corner with 4-5 pucks and tried saucering them lightly, trying to get as much feedback from the puck on the stick as possible, and then it dawned on my why my saucer passes sucked: I was launching them just as the puck started to fall off the blade because of the aggressive toe rocker. I tried feeling for releasing a little sooner and suddenly I could lob tight slow saucers at head height. I would try that routine with a borrowed P28 to see if the technique settles in or not. I'd hold off on buying until doing that "test" a couple of times.