"The resin with 407 in the picture was painted on the hull, carbon laid, squeegee, and next layer carbon lay-up, wetted out with straight resin, squeegee, and bagged"

That answers my question...I have no issue with it next to the foam...I miss understood you, thinking that you used the filler between the layers of carbon.
Ten years ago I would probably come down to help, being married and being a care giver to two sets of elderly parents (in two different cities) kind of pairs down the time for such self indulgent activities these days…LOL.