One point that I will make is if possible never buy any hackle that you can not see first. If you can’t inspect it first make it a point that were ever you buy it from agree’s that you can return it if it doesn’t meet with your approval Of course it may cost you a few dolors in postage and so on but it sure beats trying to tie with hackle that is a pain in the Butt. If a company will not let you return the hackle then do not buy from them. 
Ron