Monitors are about translation. The ideal monitors will assist you in creating a mix that is absolutely translatable from small speakers to large speakers, cars to home stereos. In reality however this never happens. Adding EQ to monitors I would only reccomend after you have done many mixes, understand where you monitors are on the scale of great translation to no translation, then you can attempt to shape your monitors with EQ to save some time. Usually this is a sign of some pretty bad translation however and there is a better approach.
I would stay away from scoping your monitors until you have had a chance to use room treatments to compensate for any anomolous frequencies that are causing bad translation. I use the the SP5Bs, the little brothers to the BX8s, and have always had a problem on the low end with the 5 inch speakers and the upper mids which dominate the sound of these monitors. I was always turning down the upper mids to compensate for the harshness. This was a mistake as when I took the mixes to the car stereo things were dull. After putting up some acoustic absorbers designed for that frequency range (i.e. Auralex) the harshiness went away and I was getting accurate imaging. The low end was solved by a sub.
I had been applying compensating EQ on the master buss to get around all this which is what you would be doing by trying to flatten the sound with EQ. Better to treat the room because EQ can cause phasing lack of stereo imaging and other nasties.
My two cents.
