I realise that this is the wrong forum for this question so I will keep it short, I changed the pushrod on my x5 to a carbon rod supported in the middle , tail is better but I have to tune out the ccw bounce ( cnt dly out I believe is the parameter) I have been noticing a head shake at low rpm which is getting worse so I think I have to change my dampeners too , this I think will solve my problem , thank you for all of your time , I think that is all , until I get a 516 anyway
Anthony