The dreaded pineapple block has been done thank goodness. It just takes a bit more time to do the inner and outer curves of those fingers.
I don't mind admitting what I do when the inner curves are really tight with little seam allowance. I use Elmers washable school glue and put the tiniest bit in the seam allowance with a toothpick and smear it on. At least I don't get any fraying. The glue is a starch product and is very safe to use. I do the same for inner points.