I think you are right about the bump settings being set too stiff, I will try softening them by a few clicks to see whether that gives me more front end grip. I am new to all of this bump and rebound stuff, with the adjustable Bilsteins on my old car it was full hard for dry TD's and full soft for wet, I am enjoying learning about it though.

To be honest, I can't remember whether the front bump setting was behind an access hole or not, I will check this evening.