You won't get marked down for things like that. If it asks for 10 point type and you accidentally do 12, the markers can't mark you down for that. They can only mark you against the PQAs, so if there is nothing in there about bad handwriting, then its not relevant! I've marked a lot of applications and i always prefer typed- its so much easier to assess the evidence. The hardest part is when people give evidence but you just can't make it out- its frustrating, but you can't give credit to what you can't read, so always make sure it is clear! But it is really about the quality of the evidence. I'd far rather see a really good scruffily written example with lots of clear personal actions taken, than a neat, perfectly spelt but vague and general answer, which gives me no indication of how the person actually behaves.
Hannah