I think the focus is on word "improvement" when it should be "changed" as the change can also make it worse. Still raises the question why anyone would buy and keep a guitar that needs improvement. I think the purpose of this is not for red spruce but for torrified tops where the cells and fibres were baked together and they need a lot of vibration to losen them up.
I haven't looked at it like that. I'm sure nobody would buy a guitar they felt needed improvement. I see using a Tonerite as making a guitar be all it can be. : )
Allow me to explain. I own a Collings D2HA, which is the Adirondack topped version of a standard D2 (rosewood dread) with a Sitka top. That guitar is 3 years old. When I bought that guitar used, 2 years ago, it sounded incredible.......in fact, it sounds DV72 good, but much louder. And that with no benefit of a Tonerite. So in my opinion, within a year (that's how old is was when I bought it), that guitar's top required virtually no break in.
Now having said that, Collings is a little different in the way they do things. Virtually every guitar Collings builds is a "custom order". You get it the way you order it. When you place an order with Collings, you specify woods, including top material, sides and back. You also select brace material, finish, hardware, fret markers, string spacing and the option to actually omit certain bracing, etc. Given that set of circumstances, when you order a custom built guitar, obviously you don't get to play it first.....and it's yours. So that pretty much negates the possibility of playing the guitar before you buy it.......it's built specifically for you.
I've ordered a mahogany backed D1A (mahogany dread) with an Adi top, Adi bracing, built to my specs, so I really have no idea if this particular guitars top will require an extended period of break in or not. So faced with that situation, and with a guy offering me a new Tonerite for $100 (they typically run $150-$170), I thought it worth a shot.
The D1A will be shipped to me April 5. If I happen to see results with the D1A, I'll use the Tonerite on my other Collings guitars and on my DV72 just for grins. I'll even use it on my D2HA, which in my view shows no real room for improvement....it's that good, but I don't think the gizmo will hurt a thing.
And yes, I still love my DV72.
West