I would put new vanes on now. I use blazer 2" with a slight offset. Arrows fly great using Slick Trick broadheads. Blazer vanes weigh less (6gr. each) than other vanes so overall weight of the arrow would go down some but FOC would go up which helps with arrow flight. If you need to raise arrow weight because of the lighter weight vanes you can change broadheads or add brass washers to front of arrow.