Well the Aurora bass strings have arrived today. They were posted last monday, so I am happy with that from the US. No customs charges either, which is always a bonus.
First impressions are really good. Notable nicer feel than the DR's, which felt awfully rough doing slides, and they have lovely tension. Tonally similar, the Auroras however do sound a little brighter and importantly the G string is not dead (an issue I have experienced with DR). I believe that Aurora used to supply DR with the coating but they have since parted company. I think DR brought out there own coating and branded it Extra Life, around the same time they brought out the Neon strings.
Happy that they are an improvement over the DR's, be it only first impression at the moment. We shall see!
Oh, and the best bit? They were buy one get one free on a black friday deal! So two sets of black coated strings for a landed cost of £26. I believe Black Beauties are about £36 a set in the UK. Result!