While I was messing around with this TCCD stuff I checked the latency at each stage here is what I found:-
All tests run at 2.5-3-3-7
240 - 48.6
250 - 46.6
260 - 44.9
270 - 43.2
280 - 41.6
To see the difference the timings made I checked it at
216 2-2-2-5 = 50.4
216 2.5-3-3-7 = 53.9
Dunno if its useful, but it was interesting to see the difference.
