Did you read Absence of Disbelief?
I read it ages ago, and re-read it recently. It sounds like you denounce blindly believing and the mindset that tuppers takes forever to emerge, and instead you go straight for the middleground of saying it's neither.
I don't understand how that actually helps. You say;
"You don't just believe, you just don't worry about it much. You think you got a response from your tulpa, but you're unsure? Why do you have to decide if it was them or not right now? You can go far accepting that you might have gotten something and it might have been your tulpa, but knowing if it was or wasn't for certain isn't necessary when you're still early in the tulpaforcing process."
To me this sounds like you're saying to acknowledge that something (let's say you heard something like a murmur) occurred, but you should also simultaneously ignore it and not give it more attention that it deserves. Which is simply believing that the murmur was something worth taking notice of, but also nothing worth focusing on. Which of course doesn't make sense. How can you sense something that at that point be a tupper and just passively let it go by, not deciding on what it was right then and there?
At what point do you actually take notice and actually do something? Or do you just go through the whole process nodding at whatever?