Here’s some pics and reference points for the 185
There were very feint Dimples on the topsheet that marked the inserts.
The 1st Of the front set of inserts is 76.5 cm back from the tip. The 1st of the rear inserts is 126.5 cm back from the tip.
The inserts have a little material left to massage - will wait til post Covid-19 and use a tap to clean them up.