Another windshield trim question

I'm getting ready to install the front and back glass on my '72 Swinger. Some of the trim clip screw holes look oversized. Previous owner may have drilled them out rather than remove the stuck screws by cutting slots in the heads and using a screwdriver as I did.

How critical is the clip location? The vertical location will be important so that the clip isn't too deep or too tall. But what about horizontally? Does it matter if the holes are (say) half an inch to one side or the other?

What do I do with the old holes? Butyl, JB weld, POR-15 patch, ?

This trim/body stuff is all new to me. shruggy.gif
thanks for any help.