121RC +8
114db4RC +2
11db4RC -12
f24db4RC -5
11bf4RC +5
f24bf4RC +12
114bf4RC +19
I didn't test the last one because I'm not sure what you mean. 11,121?
Anyway these numbers are not absolute, there is a 1 frame margin of error but it is rare. So for example I determined that 114bf4RC is +19 but it is possible that it is +20
You have to keep in mind that even if you are +19, you still have to allow time for the run -> whatever which is gonna take a minimum of 2 frames.
So 114bf4RC d1 for example:
d1 hits on the 9th frame. If you don't cancel the bf4 on the first available frame, those extra frames must be added to the startup of d1. Then there is a minimum of 2 frames of running animation that also must be added.
So even if your execution is perfect, your d1 will hit on the 11th frame.
If SZ is interrupting you with slide then:
You are running too early, so the bf4 is not even coming out, but Johnny is still running at the end of his 114 recovery. (this is not a FBRC even though it may look like it so you are not +19)
You are not cancelling the bf4 on the first available frame. Every frame that passes is added to the startup of your next move. So if you cancel bf4 8 frames too late, then your d1 is going to hit on the 19th frame instead of the 11th.
You are not cancelling the run on the first available frame. Same as above, every frame that passes is added to the startup of your next move.
If your execution is close to perfect, 114bf4RC f4 is definitely a true blockstring which means this string is at least +16 even without testing.