Suchtan, I think you made a wise choice with the BB. I too have wondered if the higher priced clocks can affect a noticeable difference from the BigBen. I don't think too many people have actually compared A/B different digital clocks.
Now if $$$ is no object, then sure, go for the matching clock with your DCS gear. But when I did an A/B with the BigBen against a word clock that was added to my RME soundcard (as a separate add on board/option) that cost $140 vs the BigBen at around $1200, I could hear no difference.