Originally Posted by Thimble
as long as the clubhead is following a decent path immediately after contact, it shouldn't really matter where it ends up in the end (think justin leonard).
extremely extended follow thrus have probably been more responsible for injuries than any other part of the swing.
one follow thru drill that might help is this one:
no ball. set up normally. place clubhead about a foot and a half behind where the ball would be, slightly open faced. hit thru from here and continue to a full finish.