My interest in making a topsy turvy cake led me to CC for information. After reading all the postings I decided to do my own research on line to see if I could find what I needed before deciding to buy the Fat Daddio Mad Dadder pan set. Below I am listing 3 links which helped me.

Batter Amounts:Go to the last page of this PDF file and you will find the batter amounts suggested for the round and square mad dadder pans.

http://www.fatdaddios.com/userfiles/Cake_Batter_Capacity_and_Servings2.pdf

Baking Instructions
These instructions are very helpful so hopefully when I do my first topsy turvey cake baking, my cakes will bake just fine. Will let you know.

http://www.fatdaddios.com/userfiles/faq/Mad_Dadder_Baking_Instructions.pdf

Care and Use
In this file they give good info on the use and care of the pans. Under Use Instructions they say:
Anodized Aluminum Bakeware Due to the efficiencies in how our bakeware performs, we suggest you reduce all recipes by 25 degrees.
http://www.fatdaddios.com/userfiles/faq/Care%20and%20Use.pdf

I hope this information is useful.

Regards

SunflowerSassy