Headliner in and stapled. Now do I trim it just above the wind lace and put wireon on top? Anything special I should know?

I have put new headliners in my '40 twice and both times I installed the headliner behind (before)the windlace. The first time I installed it I removed the original headliner and it was installed behind (before) the windlace. By putting the headliner behind the windlace you get better coverage of the headliner tacking and trimming. The hidem is a lot narrower than the windlace.