I’ve been having some tough time to ascend with notch flow rope wrench and notch fusion tether (just switch to SRT, still do DRT depends on the tree and what it needs.) I have notch foot ascender and saka knee ascender and I just ordered teufelberger upMotion SRT chest harness. Just wonder if I need certain fiction cords to ascend easier? I can either use distel or 4-3 VT fiction hitch. Any advice would be greatly appreciated.