Most common rigging mistakes

[kiwiben]

I would estimate that in my first 100 windsurfing sessions, about 95 of them I didn't have enough downhaul. It seems obvious now, but at the time I just didn't know.

What do you all think would be the top 5 mistakes for a person in their first 100 riggings, presuming they are sailing unsupervised like I did...

My guess for me would be:

1, Not enough downhaul
2. sail too small
3. board too big (after becoming good at waterstarts)
4. sail too big
5. ???

After the first 4 I get a bit vague. Would it be line placement? Mast track placement? outhaul wrong?
This is a cry for help to get me focussed on what next, now that I know how to prevent the first 4 from happening... please answer my desperate call...