I know what you mean about the "melting". Some more than others too. Mine haven't done it as bad, as mine have a very slight bubble and theres this little "spot" right in the middle of the lense. Another local CEG-er, ConnietheContour, gave me his old lenses as he upgraded to some nice driving lights. Lets just say that one of his lenses looked like about a "B" cup

I say go for it because if it melts too bad you have a good exuse to upgrade to the PIAA 510's