No problem,
Always attach the surround to the cone first, I'll dry fit it to figure out how much overlay there is then measure out some tic marks around the perimeter with a fine Sharpie on a poly cone. That way you have something to guide you when gluing it up. You can remove the marks afterward with some rubbing alcohol.

Let the adhesive set up first on the cone then glue the surround to the frame using the test tone. You can always burn a test tone CD too.
Don't pull and stretch it of shape, just let it set in place while listening for the voicecoil rubbing like in the video.

I use Aleen's Tacky Glue, restored many vintage JBL and Infinity speakers with it.