@1111bm interesting... do you have the old Jackson insole (flat, white) or the Matrix Poron insole (blue underside, grey terrycloth upper, slightly moulded at the arch and heel) that comes with the newer Fusion models?
The older insole has no arch support at all, while the new one has a bit but it's too squishy to be of much use for significant hyperpronation. I swapped mine out for my usual thin skating orthotics (rigid moulded plastic with a foam upper layer) since lack of arch support aggravates my navicular bones, and found edge control better with the orthotics - although maybe it's because I'm used to them. It might have to do with the fact that the Matrix Poron insole is relatively soft and yields with pressure, whereas a rigid orthotic or an insole-less boot both transmit forces better. The downside is a lack of shock absorption...
Some other forum members (skaters, physios etc.) would probably know more on this subject.
The older insole has no arch support at all, while the new one has a bit but it's too squishy to be of much use for significant hyperpronation. I swapped mine out for my usual thin skating orthotics (rigid moulded plastic with a foam upper layer) since lack of arch support aggravates my navicular bones, and found edge control better with the orthotics - although maybe it's because I'm used to them. It might have to do with the fact that the Matrix Poron insole is relatively soft and yields with pressure, whereas a rigid orthotic or an insole-less boot both transmit forces better. The downside is a lack of shock absorption...
Some other forum members (skaters, physios etc.) would probably know more on this subject.