The Warburton 3SV is a great Piccolo or Lead trumpet cup. Size is 'similar' to a Bach 1.5C/1.25C but the rim shape makes it feel quite different from a Bach. The rim feels fairly flat which may suit some but not others. Paired up with a well matched Warburton backbore it blows very freely for a shallow cup.
As with all Warburton products manufacturing quality is first class.