Does anyone actually use them? i've got a horse that keeps running freely, not really sure if these will help i've never used them before.

I only use them if i feel they need them, but even that is very rare.

never

top class horses rarely need them

how do you determine if they need them? also i'm really struggling to find a group 1 winner in my last 2 lots of 2 year olds, next year sees my 2 greatest horses ever give me a 2 year old amongst others.. Not sure what to do..

Basicly when solid breeding kicks in the never need anything

be patient it will come good

I sold quite a lot of my horses, just raced up against one, quite surprised as it was shocking at its recommended distance.. Turns out when selling it, they've turned it into a 5f/6f horse and has won 4 G1's as a 4 year old. need to be more patient like you said..