Dorset Boy
Regular
Ok, so you're providing 25% relief rather than 20%. It is additional tax from my point of view (see worked example), because I will still be taxed on the way out. You've generously reduced the overall tax burden from 100% to 95% in my extreme example.
But why should most higher rate tax payers get effective 40% relief on the way in and only pay 20% tax on 75% of their withdrawals in retirement (most people becoming basic rate tax payers in retirement). you may be a fortunate exception.