I used a torch to bend mine, they bent like butter, very easy. Then I "aligned" the spring ends using a vise. I will try to put them in tonight. When I tried to insert them yesterday the tubes were good and hot. Last night I shined a flashlight into the tube and I could see where the ends of the springs were digging into the tube. It doesn't take long for the spring to get hot, since I had to get a pair of leather gloves on in order to pull the spring back out. It was hot after only a few minutes. I hope they go in easy now.