I have no idea what is going on with the green color. I am not sure cause I have never ran a grid on this glaze before. I am assuming it is the frit+feldspars and who knows what else.
The 2% is the additions I added in via the spreadsheet. I added 2% to the base cups with Yellow Ochre, then 2% RIO. Everything I added was done via 2ml to the grid tiles and to the cups, using the math from the spreadsheet to make sure everything was even. 2ml is way too much for my tile without some type of pool and mountain to define the characteristics of the glaze better. I don't know if it is worth the effort or not but I am going to make another grid blueprint and dig a hole and also add a ridge. This way I can see pooling and breaking better. I still think we will always have to run vertical tiles of the grids we like though. Unless....
I was thinking is making an L shaped tile, then making a pool(indent) in both the top and bottom of the L. This way I get a melt test/flow test, and a pooling test. Run this along side the grid for optimal results?
I attached an example of what I am thinking. Basically lay the top of the tile, the red dot down. Fill it with 1ml of glaze. Lay it back up, let a little drizzle out. Fill yellow spot with glaze. Push up the edges of the tile base with your fingers when making the tile, creating like a little pool so that the top red glaze wouldn't flow off the tile. Could work? Still a lot of work to create 35 tiles when the majority of them would be useless. But it solves the solution of the grid being flat only. Would need these tiles to be like 1 or 2 inches wide probably to get 1ml of glaze in each pool.
I am still thinking with some real dedication you can make a better grid for testing.
I will try both things. I will make a new grid and make 35 of those tiles manually, since I don't have an L shape extruder.