As long as the panels aren't separating I'd go for it depending on the price. If it's clear silicone it'll be easy to see if they're separating or not. I'm not sure how you could tell if they're separating if the black sealant is used. I'd definitely cut the silicone out of the inside and reseal it regardless of whether or not it's leaking.
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I can always tell if the panel has movement regardless of silicone color.
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