I have assaulted your sensibilities and while I can’t seem to understand how, I apologize.
You have a personal problem with me and that’s apparent. I have already been warned about you both in jest on the G and in seriousness in private. None of that is a concern of mine as I intend to keep things between us entirely professional.
I have many personal relationships with Grumblers and I cherish exchanges with those people. To tell you the truth I wish for more which is why I sent you an email entitled “The hatchet is yours”. I had hoped we could iron out our differences privately and possibly make a new personal friend.
You haven’t responded to that email and your inbox here is full. I don’t know what else to do and so if the “old you” is back and I’m your target, I guess I’m okay with that. I wished it wasn’t so but it seems I am.
So now that everything is professional between us let me clarify my concern with using rubber on a guitar.
I built my first guitar when I was about 20. I have been building them and a skilled luthier sense. I have applied nitrocelluose, hand rubbed oil, polyurethane and polyester finishes. I was recently hired to be a guitar tech for the artist that recently broke the World Record for solo performance (30 hours). I am credited in the program from Guinness. I will compare resumes on this topic with anybody.
As far as the finishes go, they are all quite delicate. I have been told that modern catalyzed polymer finishes are immune to the vinyl damage. I have seen hazing to prove otherwise. I’m not sure if it was the actual lacquer that melted or the vinyl itself but the damage is real.
It seems that you were very thorough in your research but did you ask specifically if it was recommended that, even with the poly finish, it was safe to let the guitar rest on rubber? They would have undoubtedly said “NO!”
These days it's mainly the expensive instruments that use nitrocellulose. Gibson, Martin, FENDER, and most individual luthiers and small factories use it.
If your customer later gets any super expensive relic series or vintage series guitars from Fender, guess where he will put it? I would frame under the assumption that it would go in that case. If so here is what he will be faced with in about 6 months.
I’ll agree that now I’m dealing in hypotheticals and that’s a slippery slope that could lead to all kinds of ridiculousness. However guitarists are constantly getting nicer equipment and like I said that increases the odds of ending up with a nitro finished instrument. This isn’t all that far fetched.
“That’s not my problem” you might say. To that I sorta agree. However if the problem can be reasonably avoided then is there a reason why it shouldn’t? Jim Miller protests that the wrong way is often times harder than the right way so why not just do it right? Well if you would have instead covered the posts in cotton then voile, this becomes a complete non-issue.
SO IN ADDITION TO WHAT YOU SAID, I would suggest that rubber designed to make hand tools feel good, isn’t the best substance to put against any guitar finish. There is also the added risk that they may get a different guitar and being that this is a removable case extra consideration should be taken.
Again I’m sorry for any offenses. I hope that you find my “disagreements” with you post professional. I hope we can either get along with out these silly-heated-pointed posts, or cordially ignore each other. I’m fine with either but this is not a reasonable way to act. That doesn’t seem to much to ask.