ORIGINAL: Paul L Mohr
...but changing tip weight doesn't change your spine a whole lot either way. I mean if you are a whole spine selection off no tip weight change is going to correct that. At least not one that will give you a good balance for specs.
I believe point weight can help quite a bit. I used big arrows for indoor competition on the national level in mens freestyle (3rd place). I've tuned 2512's with length modification and 190 gr. points and 2613's with 220 gr. points. Those two arrow sizes won't be found anywhere close to a 55 lb draw weight @ 29". So I tuned them with arrow length and point weight. You can buy points with an adjustable weight range just for the purpose of tuning.