I know I'll be opening a can of worms here, and I've deleted it three times now, but I'm going to post it anyway.
Whilst how (or if) finish type/finish thickness effects tone or resonance in solid body electric guitars is widely debated, however IMO it is highly exaggerated.
Acoustic guitars... yes, totally different story, and no one will likely dispute that. (and I'll include hollow body electrics in there as well)
There are so many variables that go into generating an electric guitar's tone, it is very often a matter of "the whole is greater than the sum of the parts". Not least of which is the player. Then you have pickups, guitar set up, amp etc etc.
Pickups will have a bigger effect on the sound more than the piece of finished solid timber they are mounted to.
I have similar views on the whole "tone wood" debate as well. I'm not saying there are no sonic differences between different timbers but, as it pertains to solid body electric guitars it is not a single definitive factor in determining the tonal characteristics of any given solid body electric guitar.
A former forum-friend of mine used to say "tone [just] happens".
Sometimes you can put all the "right stuff" into a guitar and still end up with a something very lacklustre or even a complete tone turd.