I've build the Pepsi Can stove using both Pepsi and Coke cans. The Coke can has a different geometry and seems to have slightly thicker aluminum. This makes it noticeably stronger but causes it to heat up slightly slower, thus taking 10-15 longer to ignite completely. I've also noticed that the Pepsi stove is quite fragile. Have any of you "expert" alcohol stove builders gone trough this before? Has anyone compared Pepsi vs. Coke performance, durability, etc...? Is there a specific reason for using Pepsi cans in the first place?