I never said I had an issue with him increasing 40kg in 2 weeks.
what I did say is that, 'in my opinion' he wasn't lifting to his potential on the 260kg.
A genuine 40kg increase in 'strength' at that weight level, in that time frame is massive.
Maybe he hadn't been pushing himself as hard before, maybe he hadn't been eating or sleeping enough or maybe his true 1rm is 360kg.
My statement, which was my opinion, just as yours is that you're ok with that, that he wasn't lifting to his potential prior still stands.