Dynavector XX-2 MkII vs. Shelter 5000

After much upgrades to my system, I'm of the opinion that my cart. is the weak link. I have a DV10x5 on a Kuzma Stabi S w/Stogi S arm. I'm using an Exemplar Audio tube pre amp into two Belles 350a's powering Usher BE-10's. I'm currently using a Belles 28a as a phono section, because I have it, and it does have a good phono section. Kuzma uses and recommends Shelter cart.s, but I'm concerned that the 5000 might not be dynamic enough for my speakers, if that makes sense. It's not like my 10x5 is bad, I just dont think its on par with the rest of my system. Thanks