This never ending dilemma about 10s mixing in with 19s will never end. I fail to understand why 19 twinks believe the 10-19 bracket belongs to them.
Yes there are some 10s that can perform in WSG, but all 19 twinks have this self fulfilling prophecy that all 10s are useless and dont know how to play WSG. Nonetheless, the few that do stand out are simply considered as "exceptions" to this phenomenon.
I gave up debating with these closed-minded twinks, and I recommend you do not embark or reignite this issue.
The only thing 10s ever get from trying to get less segregated by the 19s are closed/locked threads.