hi, sorry for the late reply.. i'm not really sure about the specs, all i know is that it is sms facing. i've not really dwelt much time using this mouthpiece since i'm already using another larsen mouthpiece but it's 100/2, i got the mouthpiece from a friend in baguio and wanted me to use it.. from the looks of it, i would say that there had been changes made on the piece,i'd ask my friend to post the pics so you could have a look at it.
about the sop mouthpiece, i've not really tried using another mouthpiece other than the stock piece i had included with the sax.. (the sax is not really that good of a quality so to save me from any embarrassment i rather not say what brand it is hehe..) what would be a good sop mouthpiece? im using size 2 reed for my alto and it's comfy to use, i guess that would be the same type of comfort i am looking for with a sop piece. -marcky boy