1 ) Light engine running (loco only, no stock) over the inner radiuses of Peco's code 100 large curved points, three way points, single slip's & double slip's at a full range of speeds (from realistic to ridiculous), to check the gauging or "back to back" for any signs of fouling or de-railing over this type of track.

2 ) Hauling a variety of stock, including additionally weighted & "braked" wagons, for the purposes of assessing the haulage capabilities of these wheelset's compared to the originals, from standing starts on curved inclines (1 in 48), to traversing all the above listed trackwork.

3 ) Propelling of the same stock over this trackwork.

4 ) Ultra low speed running over this pointwork, to assess the standard of electrical pick up provided by these wheelsets.

Having been given the opportunity (for which I am both very privileged & grateful), to carry out these tests on one of my own locos, I have to say that these wheelsets, as with the entire Ultrascale range, have been made to the highest standards & will greatly improve & enhance both the overall look & running of any loco they are fitted to.