Don't know to be honest, just thought it was standard practice. AP performance also looked for a 50 deposit but the next date was the end of June, but just couldn't wait that long.
I've just been on their facebook page looking for any negative feedback and can't find any.
They seem to be travelling around Europe with drifting teams that they map and the only online feedback I could find was a boards post from Skyline owners swearing by them.
So maybe (or hopefully) the negative experiences I have been made aware of are in the past.
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