Is there a special reason why the P55A-UD3R / P55A-UD3P / P55A-UD4 / P55A-UD5 are not mentioned? :p

I've ordered the P55A-UD4, and hope for it to arrive tomorrow for some testing. Will be testing with Core i7 860 & KHX2000C8D3T1K2/4GX memory kit, and a TRUE rev.C. Will post here once i get something up and running.