Thanks for confirming.....I've just been through and edited my .json and removed all the Lap bits from each call , hoping that will work and not need me to do them all again ;-)

I've taken an arbitrary '10' off each note to see if it pulls it back 10metres.

I noticed the 'notes' aren't in order in my file , in regards to position on track. Is that normal ? Does it matter ? Did i bugger something up ?