I think this is my best attempt at tracks yet, but can still see some room to improve. As per usual when you apply a realistic track sag you end up with the final link needing to be about 1/2 a link!!! So all the links on the rear idler had to be filed down about .5mm each. For the other side i just cut off the idler whell and moved it about 1/4 of a link towards the rear, this worked a treat, mental note for the next job.