Can you clarify what you mean when you say you got to 7.5?
Given you’re already dependent on the Klonopin, I don’t think it makes much difference if you taper at 4 months or 10.
As to your question about a symptom free withdrawal, I’ve known very few members who have been able to accomplish this but maybe thats because many don’t have the patience or resources to do this. Or maybe it isn’t this reason and its totally up to your genetics, general health, time on the drug or hundreds of other reasons we aren’t aware of.
Given what I’ve observed on the forum, I doubt 5% a month would be slow enough to produce a symptom free taper and in my experience reading here, I don’t think we can predict what your recovery will look like, there are too many variables.
One thing I want to clarify, we consider stable to be able to perform your daily tasks and your symptoms have stopped changing drastically, they’ve leveled off, it doesn’t mean feeling good.