...there being no legal requirement for insurance within the UK.
Me thinks thou doth protest too much,
MC
You replied to this comment:
...may not grant cover to a pilot wanting to rent...
Whilst there may be no legal requirement for insurance, there may well be a "club/hirer" requirement for insurance, and such insurance may be voided if you haven't been "checked-out", and to be "checked-out" for other than an IR-renewal you can only log P/ut and not P1 or P1s...
So there