SC10 servo compatability

[jackeltrader]

Hi guys,
I've just finished building my SC10 FT & started to put the electrics in last night which was going fine until I tried to put the associated servo horn on to my Savox SC-1257 Servo. There is no way it is going to fit without destroying one or both pieces - has anyone else had this issue. I have seen on a less respectful forum that people either 'make' them fit presumably with a hammer, which I am not going to do or have bought an aluminium horn from Dynamite. However I'm fairly new to this lark and would prefer it if it fitted as it's supposed too, but also make sure I am using the right spacers etc for the correct horn.... I don't just want to bung it together and hope!
Anyway if anyone has any bright ideas I would be most grateful -
Many thanks,
Craig