Fog coats in base clear system will make your clear a bit more pealy , as the dry base will not let the clear flow out as much . And if to dry of an application the clear will look like you just painted over sand .

24 hours dry times between base and the clear coat may become a problem of non adhesion and cause the clear to de-laminate from base later on , if you didnt use an inter coat clear and lightly scuff before clearing , Because the clear has nothing to lock onto , due to the base being dry .
I shoot wet on wet .

May try to use a faster reducer to help lock the metallics if you think you can get away with it .
May try turning your material knob in a 1/2 turn to a full turn to help .
Try faster and smaller overlaps may help with the widest fan setting .

I do not know what type gun you are using , but Gun air pressure can help too , not going to drastic in either direction . Some HVLP's dont like lots of air pressure .
Some silvers can be a real bitch to lay out nice , due to no pigments in the formula .