Well of course the idea is when it becomes to hard to do the SS model and you have to periodize during the week you may as well go to a weekly periodized 5x5 (i.e. intermediat). BUT I wasn't really asking why you were deviating from the model. I have no problem with what you are doing! I don't care about models. The idea was to suggest that you were limiting yourself based on ideas of what you need to do rather than what you COULD do as long as there wasn't a downfall to it...such as injury potential.
The way you changed the program if perfectly fine as far as I'm concerned....I was trying to help you make minor improvements to THIS plan, not suggesting a new one
I think you thought I was questioning why you evolved you program the way you did. But what I was saying was that you were had made one step out of the "box" so I'm just giving you that extra little push to lift the other foot out as well.
You chose to make the plans you have from what you yourself noticed you needed. SO to my way of thinking you're on the right track and you don't need to doubt youself. 5x5 will help you manage fatigue but it won't give you much flexiblity. I don't really think your program has gotten too complicated. If it is good with you then it's good. And upper/lower may give you an easier way of mangaging things also so that is something to consider.
Just ignore me if I'm confusing you