My own experience would indicate that 1000 spine would be too weak for 36# @ 28". 800 spine would be better. If you're not drawing 28", then maybe 1000 would work, depending on what your actual draw length is. I've found that 1000 spine works well for 25# bows, so it might work for your new bow. PSE makes a good inexpensive 1000 spine arrow called the Razorback, but it comes with a glued in point. Maybe you should just consider shooting for fun in the tournaments that require screw in points? In 1000 spine arrows, the glue in points really do work better.