OP,
Are you seeing excessive wear currently? That would easily determine for me if a tire is too soft.
With your right sides softer than the lefts, I am guessing you have some internal in them as well?
That's the first thing I'd work on is getting the duro to be the same lefts and rights (or at least much closer.)
6 & 8 is relatively high psi for tracks where Vegas excel. Not saying that won't work, but generally they work best on low/no bite tracks with low psi and those stiff sidewalls. I would "assume" that you are NOT locked down into the track if you dropped psi, so I'm wondering why you think you have over-prepped.
We roll all of our Vegas internally - but have two very different chemicals - one designed to help break down the sidewalls, and one that doesn't do much to the sidewalls at all. Of course amounts used internal make a big difference as well as cure time.
Now, you may need tires as soft as you have them currently, we don't know. Look a the wear, see if they are building heat or not, and remember that tracks change and your tires need to change with them.
If you're wanting to pull some prep out of the tires, you can wash them with Simple Green or other aggressive degreaser, or mix some alcohol in with your wash. Afterwards, refinish the tires and let them sit in the open air / sun.
Of course you can run any tire unprepped, but rarely is an unprepped tire going to be as good as a properly prepped tire.
We've got a pretty dog gone good Vega program. Not saying that there's anything wrong with Donnie's preps, I'm sure they work with Vegas too. If you have any questions, we'd be glad to help you.
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Thanks and God bless,
Brian Carlson
Carlson Racing Engines
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