Synchronizing Cubase, MPC 2000xl and 2 sound modules

I am not sure if this is possible or not, I have a MPC 2000xl, Triton rack routed to MPC midi out A, and a xv 5050 routed to MPC midi out B.
I want to record vocals into cubase vst, however to synchronize cubase and my mpc I have to remove one of my sound modules from the Midi out A or B. Is there any way to have both sound modules in midi out A or B and the possibility of cubase synchronized through a midi out or midi thru from any of the modules, to sychronize Cubase vst? Or what additional equipment must I purchase to make this possible? I prefer using my MPc as my controller and the other equipment set to slave.

Thanks for the feedback

i want to add to this question.....
i have NI kontaKt, i once tried to sequence it (standalone) using my MPC2000XL, and i got this irritating split-second (but VERY noticable) delay.. i have a good audiophile soundcard w/ midi... i also have cubase VST, will the latency disappear if i sync the MPC with cubase, and open kontaKt in cubase??? where does that latency come from???