Though to be fair I asked about being on PSLP when I was MX11. Director shared that your CEP needs to be at a certain level (he didn't say what it is but I guessed it's MX7 at least) to even apply to the programme if not on PSC scholarship (not guaranteed to get in). The next year he told me my CEP was raised and then I got promoted. He didn't reveal what is my CEP though.