make it deeper for thicker plastic. The current lenses are 1/16" thick but the thinnest that most colors are stocked in is 1/8"
Wouldn't be the problem of loose original lenses if we make the lip for 1/8" ?
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cheers, Thomas new owner of the MK1 00123 MK2 12GB 090000815 (my first one) MK2a 040103735 (from 303) and ???