For sure, fishing with trashed flies always seems to produce more for me as well. Ive had a few flies where they got so beat up the tinsel unwound and was trailing behind the fly and thats all the fish would hit. Just keep on tying up flies and getting them in the water. If you have a fly at the end of the day and not just a bare hook it probably means you did a good job.But I agree with TieFlier - the fish are really the judge and jury - it's amazing what they will hit and what they will ignore. Often butt ugly and all beat up works better than a neat and tidy perfectly tied pattern.