I suggest you change from your DW rim as soon as possible. I also suggest that while your embouchure is recovering you use a 'softer' rim. PHC can supply you with a choice of acetal rims including White Acetal (plastic) Black Acetal and Crystalite (clear plastic). You can ask Mike Bosley for polished or unpolished finishes on all PHC plastic rims and we do allow you to try PHC mouthpieces so you are able to find the best cup/rim combination for you. Not many people use DW mouthpieces because they are thought to be fairly poorly designed. Horn players who have suffered embouchure damage will hopefully post their suggestions to help you.
PHC mouthpieces are available from
http://buyinstruments.co.uk/shop/catego ... =cid%3D%26 Mike Bosley
Batchmere Trading Ltd
81 Essex Road
Bognor Regis
PO21 2BY
01243 821382
mikebosley@hotmail.co.uk & 01243 821382
The rim dimensions are @
http://horncups.com/range.htm Rims
Halstead and Chidell have introduced 2 'American-style' narrow rims into the range so that the many horn players who prefer this type of rim will be able to use any of the 15 PHC cups.
INTERNAL DIAMETER-RIM WIDTH
US-1 17.00mm 3.50mm
US-2 17.00mm 3.80mm
For Philip Farkas, the ideal rim was one that was 'neither too large nor too small'. An ideal description for these four rims which have long been popular with the many players who find a slightly larger internal diameter rim comfortable.
AN 17.50mm 3.75mm
AS 17.50mm 4.50mm
AM 17.50mm 5.10mm
AW 17.50mm 5.70mm
To meet a demand for an internal diameter that falls between that of the 'AS' and the 'S', these two most popular rims are now available with an internal diameter of 18.00mm.
AS-18 18.00mm 4.25mm
S-18 18.00mm 4.50mm
The advantages of using wider internal diameter rims are immediately apparent. More of the lip is free to vibrate within the mouthpiece, which allows greater mobility over the entire range and gives the potential for developing a greater variety of tone colours.
N 18.50mm 4.00mm
S 18.50mm 4.75mm
M 18.50mm 5.25mm
W 18.50mm 5.70mm
All 12 rims are available in a choice of finishes - silver plate, gold plate and white acetal, which is hypoallergenic, has a more constant temperature and a unique 'soft' feel. All of these rims can be used with any of the 15 PHC cups.