Pizza - Preliminary Perfect

We are on the quest for the perfect, chewy, homemade pizza. We are trying some slight variations of the theme every Saturday. Last week we thought we were very close to perfect. Here how we did it:

1 cup bread flour
1 cup spelt or white wheat flour
1/2 cup semolina flour or stone ground corn meal
5 1/2 TBs sourdough starter
1 TB salt
1 ts yeast
2 cups filtered water
Olive oil
2 - 3 garlic cloves
1 can tuna
1 onion, sliced
2 tomatoes, sliced
2 cups mozzarella cheese, shredded
basil leaves
Using a Kitchenaid I mixed all ingredients. The dough will be very soft and sticky. Let rise for 2 hours or until dough has tripled. Preheat pizza stone in an oven at 450 degrees. Pat dough into pizza shape on parchment paper and brush with olive oil. Slice garlic into fine pieces and distributed on dough. Top with tomato, tuna, onion. Carefully place the pizza on the hot pizza stone. That's the tricky part! Bake for 10 min. or until pizza is lightly brown. Top with mozzarella cheese and basil and bake until cheese has melted and the pizza looks done - about 15 min.

Update:
Placing the dough on the hot pizza stone is probably better, but too tricky. I now just drop the dough on the cold pizza stone (sprinkled with corn flour) and pat it into shape. Tastes pretty much the same!