Without want to sound like a cunt, having read through your post again I'd guess your baseline strength is probably a bit lower than mine.
And finally you mention the mono's were on non-overhanging territory. Whilst it's cool to get better on mono's is there also a possibility that you are over pulling on the hand and not using your feet to their full potential. On slabby/vert ground i'de expect to be at worst lightly pulling on the hands unless the feet are babba.
-use a mono grip as often as possible in light domestic tasks.
mono door opening training.
I've never climbed in the 'jura though do they have dynamic mono moves on < 7a routes?