| The Warburton 4FL is a lovely flugel mouthpiece - the 4 rim is similar to the Bach 3 rim. The GR 3FD is also good (this is what I play but I wish I had gone for the Warburton instead) it is based on a 1970's Bach 3C rim, and is a good deep funnel shape. The GR 3FL is too shallow for a flugel mouthpiece in my opinion.
Graham |