L1 was at Habs juniors but slightly dyslexic, a rare combination I'm sure but she's also quite clever. So at 11 we thought we should sit her for other schools and had the same concerns, may be none would have her so she did about 6 I think but got in where she was after all. I'm still glad she had the back up of somewhere else.
My sister's area even has two schools which put their entrance tests on the same day so that you can't sit for both which seems pretty mean.