^^^^
I think you're wise, TC - I know that many here like to maximise and squeeze out every bhp they can from their cars but the shape of the graph and keeping headroom tolerance on how hard engine components are worked, is a much more sensible option in my opinion.
Even only 260 bhp on a K03 car is plenty fast enough for road use when combined with good handling, and it's still fun on the track as well. There'll always be a faster car in your rear view mirror.