i used my poncho yesterday for the first time in a long time. mate was in a full length wax coat.
My god didnt it rain. what i found was the hood is to big, guess it would be ok with a tin lid on me head. it is a little noisy but my thought is, if its raining then the animals will not be hearing to well as the rain in the trees and on their ears will knock their ability to hear.
it must have been ok as there's my fallow in the chiller and nothing for mateys. he had a fox so happy with that but he got a soaking for his trouble.
there are poppers down the sides to stop it flapping and a draw cord on the inside to pull it in. put a cap on and it works ok.
you can get high seat umbrellas that clip to the tree if that helps.