Soooooo, just to clarify what you said, you didn't say that Tubb's system doesn't work, you are saying it could have ill effects if MISAPPLIED? Is that what I am reading?
You say you would not "endorse" Tubbs fire lapping system (whatever that means, I have not known David to ask anyone for "endorsement" on anything. I do know that Bartlein made a big deal to announce to the whole world that anyone using Tubb's system "would void their warrantee" or some such thing, and Bartlein is the only company that I know of to make such an announcement).
It seems you have gone out of your way to condemn a system because you think your customers are incapable of using it correctly. Did I read that correctly?
I won't flat out condemn it and here is what I tell guys. If you have a barrel towards the end of it's life or a factory barrel that is really rough then I'll say try it as you got nothing to lose.
If I have a customer with a barrel and for arguments sake in 308win and the thing is a hammer and the barrel only has 300 rounds on it don't do it! If you do it and now the barrel has issues I cannot be held responsible. We have no control over how many times the guy uses the fire lapping kit, how hot the loads are, what grit bullet is used blah blah blah. So you can say it could be user error but I will say this....we get dragged into it. So how do you or anyone else expect us to warranty the barrel? I don't like variables...and now your throwing another variable into the equation.
If your having a problem with one of our barrels I would prefer you call first before you start doing stuff to it and either make the barrel worse and or we end up not being able to figure out what is truly causing the given problem.
Back when the conversation happened on the phone....it was hey I'm going to send you some stuff out. Give it a try, recommend it etc.... etc.... etc.... he called me. I didn't call him. Picture attached and I didn't pay for the stuff. Did I try it? Yep. Did I see any benefits/gain from it. No. The couple of guns I tried them in didn't shoot any better and didn't clean any differently.
If you use it and like it and you are not having any issues and are comfortable in using it and your not wrecking anything per say....I've got nothing to say. Again though from what I've seen I cannot say it's the cats meow either and or endorse it.
If it was let's say a cure all....then why isn't any of the ammo/bullet makers using it in the ammunition test barrels? Why isn't anyone in the gov't using it? Maybe one of them are but I cannot think of a single one. That also has to tell me something.
Let's stick with a good barrel and a good gunsmithing job (Alex Wheeler said it best in a previous post).
I see no way it can increase muzzle velocity, or helping it clean better and or extend barrel life. I'll say that's my opinion.
I'll throw Stan under the bus here (no offense Stan) but if another barrel maker comes on and makes the comment to the extent hey we like it as it helps us sell more barrels. Hmmmm I think Stan and I are on the same page. My apologies for throwing you under the bus Stan!