I acquired a big box of hand-me down reloading junk which contained a large number of wad columns of various size and shape. Upon further inspection, i noticed that some of the wads have become brittle, and the petals break rather than fold open. Are these wads ok to use or should I just give them the heave-ho? Wad columns are cheap enough that I dont have a problem buying new, but I'd like to use them if they are ok.