This is a possible solution. See two images (if Lower Logic managed to upload them).I made an adjustable "bellyband" from two 8" zip ties, then secured the band and the hammer felt with a third 4" zip tie. If you make the belly band fit the largest hammer, the band can be reused and adjusted for the smaller hammers after the CA+whiteglue has setup.
I highly recommend the dark-red zip-tie cinching tool; it's made by Panduit and is available in the electrical tools section of hardware stores.
Hi Joe, Nice repair, I guess you hold it/ clamp? while you pre drill to align felt to molding, how about when it's peeling from the bottom end tricky huh!www.snowpianos.com