Saw this on Ebay. Price has gone too high for me, but others may be interested.
http://www.ebay.co.uk/itm/270810197806?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
Good item especially if you need to run in locos for either DC or before installling DCC i have another makers rolling road saddles like these & they are a boon when running a loco in.
If you enlarge the pictures in the listing in the second picture with the box open & look carefully you can see the price they should be new on the left half of the box.
It is important to follow the manufacturers instructions when running in. I run my new Farish locos on their own for the recommended 30 mins in each direction and this seems to do the trick as I haven't had any problems with any I've done this with in the last few years.