Thank you so much for the video link showing the mouthpiece measure and 
reface.I won't have anything meaningfull to say about refacing as I 
joined this group to learn it.I suggest that any new member that 
doesn't have microsoft office get open office as it opens all the excel 
files and most others for 9.00 instead of spending 150-500 for the  
microsoft version.If anyone knows where I can get software to open the 
perl file for reasonable money I would appreciate it.Thanks for having 
this group.I've been a repair tech for 12 years but don't know squat 
about mouthpieces.I am learning so much and appreciate everyones 
willingness to share,regards,Ted