I’ll give my 2 cents. Stingers are good heads, just make sure they are razor sharp. I don’t know whether the serration helps. Bleeder blades should not affect arrow flight, that is just personal choice whether to use them or not. And as far as arrow head weight, that is going to be determined by arrow spine, not whether you want a little flatter trajectory. Properly spined arrows will fly the best from a bow. Many others on here can really take you step by step for finding a properly spined arrow. Typically you can get a shaft near the spine you need, then either adjust point weight or shaft length to tweak it.