ab initio modeling

Your publication in Nature protocol said "Despite of dependence of modeling results on templates, we note significant advantage of I-TASSER methodology in both template structure refinement and ab initio structure modeling for small proteins"

Taking job S134720 as an example, we can't get good results and I think the reason was that the templates were not so good. In this condition, should I choose quark for ab initio modeling?

For ab initio modeling, I-Tasser and QUARK, which one is better?

Thank you and looking forward to your reply.