dividers are only a disadvantage if you end up running your RAM underclocked.
eg. at 300 x8.5 where I have a stable cpu config.....I was using some Geil RAM that wouldnt let me run with a 333MHz divider at that fsb and mult, so I was running at a 266 divider....my RAM ended up sitting at 196.2MHz (close to stock, but still under.)
I ended up swapping that RAM for some Legend Value RAM which then let me run at a 333MHz divider (232MHz).
my 1M Super pi score ended up being another 3 sec faster
now I have my cpu@292x9 my RAM runs at 238.9MHz
Incidently the Legend Value RAM was over $30 cheaper than the Geil