To xraf
Do you know who pays the check at the end of the day?
If the club starts losing members then it's you who gets sacked. Bear that in mind.
As long as said PPL holders don't crash it then it's fine. Should they manage to do something more dangerous than what I pointed out then it's not deemed safe.
My safety issue is with full and free just before take off. Now as far as I was aware, it's important to check aileron left goes up when deflect left and aileron right goes etc when turning right. As you never know it may just not be doing what you think at that stage.
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