Some advice/help please

[4_cell_racer]

Raced my 210 tonight (2nd time) and had some problems with steering!

Last week it worked perfect full lock both slow and high speed... Yet tonight I had hardly any steering coming into a hairpin :-/ slow speed lock is still there but high speed it's like I've turned the throw down to 20% understeer city

I don't use the std servo horn, I'm running a kimbrough servo saver.

I've also noticed that I can have a fair bit of high speed wheel wobble :-/