I don't think that'll help much. Not only is Sidious just plain better at Sith BM, Luke and Yoda are going to be able to do the jedi version and battle meld besides, seeing as Yoda is still Luke's master. Any BM the challenger team uses is going to be them desperately trying to keep up.
Also, a team that includes no Jedi is vulnerable to Force Storms, because only the light side can block 'em.