Hey MQ..there is a newer dry fly floatent out...I have been itchn to try but but dang its a little spendy for the size bottle you get.....that said it works like a charm! Its called water shed made by Hareline Dubbin, Inc. in Manroe Oregon..the tests the company did were pretty impressive...they left a fly in a container floating..came back a week or two later, the materials were starting to rot, the fly was still floating high and dry! I think a drop or two per feather would be about perfect!