Pro Tips:
1) Soak your t-top nylon reaving line in hot (almost boiling) laundry detergent/ fabric softener water for about an hour before you start. This will relax the fabric of the line. Once the line dries, it will tighten itself and you should have no extra tightening to do. This thing is tought af.
2) Do like I did in the fancy work thread concerning extra line. Wrap both ends around a 6" dowel and tie it off with rubber bands, to keep it from unspooling. That will save you a massive amount of time and rope burn on your hands.
I just laced my top in under 30 min and not one loose hitch.