I dont use the felt clunks so I dont know anything about brands and have not personally experienced it. But there are severl threads here on rcu that mention fibers in the carb.
I dont have any pictures of my tank setup but its easy to setup. Dual clunk and one vent. The vent is standard setup. One clunk goes to the carb like a standard setup. The other clunk goes to a fill/drain line that is plugged and run outside the cowl. I've had way too many problems with 'T' fittings and fill valves and just dont use them anymore.
Edwin