I’m not happy with my current shoes (too much play/space in front area - mistake with buying, when i was comparing comfort and size to MTB flat shoes, single BOA, when i tightem them a lot, it's tight at the top, but bottom of the shoes is still 'loose', no straps )
I’m thinking about these:
(100-110e) - with one BOA and Velcro
Fizik R5 Tempo Overcurve BOA
Mavic Cosmic Elite SL BOA (i was able to try it and the fit was nice)
Shimano RC5a bit more expensive with 2 BOA (150-160e):
Northwave Revolution 2
Shimano RC7
Does second BOA make big difference? reviewers say they can’t see big diff. about velcro/boa (comparing shimano RC5 to RC7)

i know it's not only about BOA or 2, but higher shoe has better stiffness as well.
Any advices ?