I have failed written part of P404 twice now by a few points both times. There is limited feedback with the results. Is it me? Had anyone else out there struggled. I have read and re-read the BOHS guidance dozens of times and have ensured that I have added as much detail ax possible and showed how I reached my calculations etc. No problems passing the practical and I passed 402 without any problems. Any tips,advice and guidance would've greatly appreciated.