I just wanted to share this victory, I had a very stuck stem, crazy stuck. I tried all the methods to un-stick it but nothing budged it. so I tried the hacksaw method very carefully, took me about 2 hours of cutting, looking in the steerer tube every two minutes, I almost gave up...went to bed, tackled it this morning and viola! the two halves were easily taped out and best of all not a single mark in the tube. I am so happy right now!!