You said it:
Just a query really from myself regarding the comfort margin this guy or company allowed for target fuel especially on a long jump. To me it did seem a bit strange,.....
I see that as critical - I would be offended if I saw someone commenting on my actions like that. Therefore I took the trouble to give you as good a possible explanation as I could guess. A Doctor wouldn't like to see another Doctor query his actions as 'seemingly strange'. Perhaps 'I don't understand why.....?' would be better? I don't see that disguised expletives were called for, or reflect well on you, considering you chose to openly question in a critical way a professional colleague's actions of doubtless far more experience than you and knowledge of a route you have never been on. What does pi5534 mean?