The op mentions aiming to achieve professional pilot qualifications, in which case their logbook will have to stand up to scrutiny from the regulator.
The EASA rule is:
FCL.050 Recording of flight time
The pilot shall keep a reliable record of the details of all flights flown in a form and manner established by the competent authority.
so the only people whose opinion really matters is the LBA. The mostly UK based responses here may not apply.