Anyone on here actually used tuning dials on a DTA p8 pro for live mapping on the road?

Personally i cant get on with the damn things and ended up just manually editing the map instead, you cant seem to lock it on a cell and edit it, so unless you happen to be in a set of circumstances where it loiters around in a cell for ages anyway (ie uphill in high gear or something) there doesnt really seem to be enough time to input using the dials.

Whats other peoples experience of using them?

I can see them being useful on a dyno where you can hold a car on a site, but to me they just dont seem useful in the real world?