Macarons take two!

Gave macarons a shot again!

My first time was okay. Shell was a bit underdone, and had used dulce de leche.

This time was a lot better.

-I put the oven on conventional mode, not convection
-Used my old silicone mats with the shell outline for better uniformity
-inverted the baking trays and put the shells in the top of the trays (I see people do this a lot, I guess it keeps the heat from building up inside the walls of the tray?)
-made a french buttercream instead of dulce. Put a dollop of blackberry preserves in the middle.

Overall a lot happier with this batch than the last one. A few shells were hollow, but 95% of my yield was usable.

Thank you for your advice and taking the time to check my stuff out!