This is a modified mouthpiece based on a Perantucci PT-24+, customized by Brass Lab Momo. The rim is a Tilz Walter Hilgers B2, and the cup is a Tilz 24aw, enlarged to an inner diameter of 33mm. The throat is 8.9mm. The concept is an easy-blowing Stork WD24. It can produce a dark and thick sound like a Warren Deck model, but the slightly constricted throat helps to conserve breath. The WH-B2 rim improves responsiveness, and the low register sounds exceptional. Satin finishing inside the cup further enhances the response, resulting in a more reactive mouthpiece.