i agree bill, pouring plates isn't easy. the biggest ones i poured
were 4x5 and it took a lot of little ones ( 6x6, 6x7, 6x9 ) to get myself ready to do bigger ones .
later i coated windows panes ( standard 6 over 6 sashes and much bigger )
i just used a brush, i was broke and the brush is easy ....

my early "experiments" were well poured but slid down the drain ( i didn't use hardener )
i was just curious as to how george and alfred did it, since it is how "it all started ... "