Perhaps I am still misstating the math or misunderstanding the spread-sheet.
Let's say I have 1 different coin sources. 60/600 compromised nodes I choose 2 hops and make 1 transaction. Then according to the spreadsheet, that one transaction has 1% chance of being compromised.
Now lets say I have 100 different coin sources, one for each of 100 transactions. 60/600 compromized nodes at a 2-hop rate. Now each transaction itself has a 1% chance of compromise. thus in total, 63% that at least one of them is compromized.
An example: let's say I have 100 dice with each having 100 sides. So each dice has 1/100 chance of rolling a "7". Now if I roll all 100, then there is 63% chance that at least one out of the 100 gets a "7", regardless of the fact that they are different dice. It's just acumulating the independent probabilities of the unrelated events