The method that works for me is to cut 2 or 3 of the sides then use another ruler, butt it up against the twister and pull the twister away and cut against the side of the 2nd ruler. I'm sorry if I make it sound complicated or labor intensive: it really isn't. I find it inconvenient to walk around the table- I'm just klutzy and find I mess it up more but that's just me. I also have the Nancy's Notions twister tool and really like that. Good luck. Don't give up. The twister looks so complicated to non quilters but we know different! Let us know how you're doing.