scrap regional pressures
Would it be a good idea to scrap regional pressure settings and up the transition altitudes to a common level.
There are enough airfields to get up to date QNH's and have a better idea how far we are above ground should we have an engine failure. We would be on an appropriate setting for transiting around, under or through mainly class 'D' airspace.
Make transition altitude 6000, this might give faster aircraft crews more time for after takeoff checks and prevent level busts.
Flying at FL35 in the UK you wouldn't have to worry about flying into high ground during low pressures, because FL35 wouldn't exist. Half the traffic above 3000' now isn't flying quadrantals because its general handling, climbing or descending.
Regional pressures are just as good as say subtracting 500' to any aerodrome QNH we may have set as a safety factor.
Introduce a Welsh and Scottish QNH for remote areas.