question one:
insoles in boots seem a poor substitute for properly fitted gear. but better than nothing if you can't replace them
question two:
who knows? just HOW too big are they? you should go into a store if you can and try them all on. they ought to be snug without squeezing your toes too much. maybe post your sneaker size. there are a lot of sidi wearers on here that could tell you what size they wear and get you in the ball park
insoles in boots seem a poor substitute for properly fitted gear. but better than nothing if you can't replace them
question two:
who knows? just HOW too big are they? you should go into a store if you can and try them all on. they ought to be snug without squeezing your toes too much. maybe post your sneaker size. there are a lot of sidi wearers on here that could tell you what size they wear and get you in the ball park