I hear doing both gray and filter cuts too much light. On my AE100, my diy dark gray painted wall looks good but I need to do it over since I didn't make it smooth first. But I have a filter (hoya fl-d) on order too. I'm thinking of just getting a parkland for use with the filter, but maybe my blacks will suffer using the white parkland (but it's guaranteed smooth and is portable). Any tips? I suppose I'll have to compare.