What a waste! What is wrong with you? You usually don't cave on things like this so easily.
Whatever, hope you aren't one of the one that is "never fishing with anyone that wears felt". I just bought some new boots with felt. I did the research but I never heard anything good about vibram so I went with felt again. Yes, in some cases, felt is just as slick as anything, mud, snow, etc. But that is not what they were designed for. But for those big slick river bottoms there is nothing better. And you are right, I have never wore vibram on those same rocks to know for sure, but I can do research and figure that out on my own.
Yes felt probably does harbor some invasives, but there are a lot of things that we carry that spread the same thing. I should use vibram and risk busting my butt, but I can still use the same waders, line, flies, belt, gloves, laces, uppers and nets without any concern? Something is wrong with this. And if the entire fishing industry is so against this, and it's such a bad thing to use felt, then why was I able to purchase a brand new pair of boots with felt?
You can't just change one thing and expect everything to be a goody goody. But go ahead and pat yourself on the back for ruining a perfectly good pair of wading sandals................oh and adding all that smoke into the atmosphere. Retard.