chance to hit / be hit;
Luck is suppose to have an influence on your hit rate. Possibly that involves a random value?
speed limit;
Did you eat / drink / sleep anything that could have been giving you a speed boost, which was removed when you added the skill points? If you hover the cursor over 'Speed', what does it list as the base value in each case?
I think the Larians are following the forum, should already be aware of this.