Can we send multiple transactions from a single wallet that total 100ETH to limit our risk in case the smart contract has an exploit in it? Send 10ETH, wait for return of ETH and associated AUT, repeat 9 more times. Or does the smart contract hold all of the ETH until the end of the deployment which would make this approach to limiting risk impossible?
It will register AUT instantly. And in terms of the return, aside from transaction times, the return of ETH should be pretty instantaneous as well. I'll have to ask the dev's whether or not you will be able to use the same address multiple times or whether it will just reject ETH after it has been already registered. Good question.