Doc is right - you never will know 100%. What's more, think about it - you never knew 100% in the first place. If you think you did, well, you were apparently a bit confused....
That's OK, though. NONE of us EVER knew 100% - or we wouldn't be HERE, would we?
OTOH, getting back to The High 90's ain't so bad.
Thread #10 22 year M, MLC, Piecing since 1/07 Goal: Live with confidence & enthusiasm!