It's been iterated before, but I highly recommend some sort of torsion bar delete mod. I tried to get a replacement bar for six months before giving up. The first time I called FRP about a replacement, they took my name and phone number and said that new bars would be in by the end of the month. If I didn't hear from them by the end of the month, then I should give them a call. That seemed perfectly reasonable. The end of the month rolled around, and I got the exact same spiel. In fact, I had the exact same conversation five more times over the next five months until I decided to take matters into my own hands, so to speak. Don't get me wrong, I love my Flippac, but it bothered me that every time I called the person on the other end either had no clue what was going on or was blatantly lying. If they had just said production is generally slow or they were behind on orders, I probably would have had more patience. Not to mention, a new bar was going to cost twice what I paid for my used shell.
For those on the fence about a delete mod because the you're afraid the roof would be too heavy or difficult to open (like I was six months ago), here's a video of me opening my Flippac with a push pole. I'm not exactly the biggest guy, but it's fairly easy so long as it's not really windy or I haven't had too many beers.
https://www.youtube.com/watch?v=4xnpvDaL5A8&feature=youtu.be
For those waiting on a replacement bar, best of luck and kudos to your patience!