Has anyone on here upgraded to the TIR lenses? The attached link says they live up to the claim and for $30 I will be trying them. Hopefully the next upgrade can get them to the xp30 pro level.
http://www.advancedaquarist.com/blog/ecotechs-tir-lenses-hands-on
http://www.advancedaquarist.com/blog/ecotechs-tir-lenses-hands-on