Was merely pointing out that not everyone can base their regen frequency on your own particular daily drive, some people (who don't really need a diesel) will be doing far less miles and with low speed stop/start driving. I would be very surprised if you ever see your own dpf dash light come on.
I see little to no difference with these so-called super fuels when it comes to frequency of regens, they do seem to help the process complete a little faster though. Poorly refined remaps certainly lead to increased soot loads but those that burn clean tend not to have any negative effects. I've never played with the DTUK boxes but I know they are superior to the oldskool resistor boxes which just overfuel and lead to premature dpf failure.
Thrashing is subjective, holding a diesel for prolonged periods over 2000rpm is counter-intuitive to most. 50mph in 4th gear at steady load I find works best.. I would also advise against using the emergency forced regen unless absolutely necessary as it will shorten the life of the dpf, allowing the ash content to build up faster than normal.