You mention crosstalk "was mainly noticeable when I kept the 3D glasses brightness on high". Do you have Epson's RF 3D Glasses, and, if so do they have a brightness level control? I didn't notice a setting other than sync and power.
I currently have a 5020, and crosstalk and convergence have been my two main issues with this projector. I am considering the 5030, but would really love feedback on whether these two issues have improved from the 5020 to 5030 - especially 3D crosstalk.
I have the Epson glasses along with two different model Samsung RF glasses. All of them show the same brightness and crosstalk level as the others. When I change the brightness level in the settings, it affects the Samsungs as well, not just the Epsons.
Its hard for me to say that the crosstalk level has been improved from the 5020, but I can say with confidence that the 5030 has a better overall and much more enjoyable 3D picture than the 5020.