I have shot 48#-50# bows for over 20 years now. When it comes to aluminums I have shot 2016, 2018, 2114, 2115, 2213, and 2215 cut around 29" fletched with three 5" LW feathers with anywhere from 145 to 175 grains up front. I like the 2115's the best. When I settled on carbons I have been shooting 400 and 500 cut to around 29 - 29 1/2" with 250 -300 grains up front fletched the same as my aluminums. I used to like the 400's but I think I like the 500's the best in carbon.
I have several different bows but they are all in the 48 - 50 pound range and I shoot the same arrows from them all whether aluminum or carbon. Ever once in awhile I will drag out the wood arrows. They are spined in the high 60's, around 29", and have 145 grain glue on field points, same fletching as above.
I am sure there are guys here that put a lot more into arrow tuning than I do. Over the years I have just tried enough arrows to know what will shoot good for me and the bows I use.