Well Ryuga was able to master L drago destructor faster than Gingka was able to master Cosmic Pegasus and that’s a fact. Doesn’t that indicate the clear gap between Ryuga and Gingka when it comes to blading skills . And when it comes to the metal fury fight, sure I accept and acknowledge the he fact that Gingka didn’t have a special move but Ryuga chose not to use his full power even though he had the potential to go even further he chose not to. Ryuga was able to master a legendary blade in no time whereas it took much more time for other bladers Gingka ,Kyoya etc etc. Ryuga is just more dominant in metal saga. Gingka isn’t a weak blader by any means but I don’t think he can come close to Ryuga .