Tip Lens Not the same material.
Getting OFF TOPIC - the tip lenses are vinyl (or something) and WILL melt with alcohol. I was polishing one and decided to test a piece of scrap first, yep isopropyl alcohol will soften and mar the tip lens
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Bill
RV-7
Lord Kelvin:
“I often say that when you can measure what you are speaking about,
and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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