Hi there,
Yes so true you are correct there is part science,skill, artistry and a big heap of love that goes into fine luxury leather restoration and upkeep. You are well on your way to mastering some of it. Bring on another project when you are ready.
Those small white adhesive marks that responded to heat ; sounds like they were some waxy product or wax based build up which would infact work with some heating,if it were gum it would have moved deeper into the leather's pores and made more of a mark.
Ah, interesting! Good to know about the wax.
I will be looking for a new project - one which my budget permits! I'd like to learn how to use filler, and learn how to redye. Of course, I'm also mesmerized by your beautiful VN bags and their incredible patina. When my kids were very young I went through a stage of refinishing antiques and learning how to use shellac and apply painstaking layers of french polish - such a miracle to see a beautiful, mellow patina develop, whether working with wood or with leather...
It may not be possible to find a VN H bag within my budget, but I'll be on the lookout! I'm so inspired by the work done on this thread - just incredible. Thank you for your wisdom, doc, and thanks to all who have shared their projects.