We have had the MOT computer now for probably 2 months but have not yet had the go ahead to using (it no paperwork or manuals). I suspect that the rollout wasn't as problem free as VOSA/Siemens thought it would be.....I wish they'd give us a proper up-to-date explanation.
We are still waiting to see what everyone else in our area does with regards to retest. We need to sit down and fully understand what the implications are with regards to what we need to do from a retest point of view.
We are fortunate that we now have two MOT bays and three testers and are not at full capacity so the retest issue is less of a problem for us, though ideally we would like to be charging for all retests as we are entitled to. Though, I suspect we will settle at some nominal charge, but like I say it depends what everyone else does. The competition already discount (we don't) and we are usually very busy.