I just got the HD23 to demo it, and while it does have noticeable RBE, if you use an ND2/4 filter it greatly reduces it, and with the high lumen rating, the HD23 can afford a ND filter. One thing to keep in mind, the HD23 uses a DC3 DMD while the HD33 uses the older DC2 DMD. The difference between the two chips is not huge, but still noticeable. In comparison, the Epson 8350 does not compare to the HD23 in color, contrast, and black level. Not to mention the SDE on the epson is very noticeable at closer distances because the D7 panels have a %53 fill factor, while the HD23's DC3 chip almost completely eliminates the SDE with its %95 fill factor. There's always a trade off.