It sounds like your stitches might be too tight. I never use a hoop. Also if you are going around curves do the inside curves first and then the outside curves; it eases the fabric in better. Make sure to snip the curves where needed so that they lie flat as well. Good luck. I keep mine in my purse and work on it so using a hoop isn't an option. I also always start with a block larger than what I want to end up with because it will get a little smaller as you applique. I also do not use stabilizer; never needed it.