Flatland ist nearly unjudgeable. For me it would be a personal decision...
About Matthias. I´m kind of disappointed about his changes in riding. Back in the days he was SUCH a trickmachine. Pulled so much very hard stuff! The "Odyssey's Happy New Year Edit" was at least fun to watch but edits like "Hyperspeed Johnny n The Destruction Kid" are also today my biggest inspiration and motivation. Just 100% Newschool Flatland of two very talanted, young riders.
The tricks he show nowadays are maybe 5% of what is able to do for sure! Miss the old times.