I have a great video of my friend wiping out on his skis.  His wipeout starts at 1:30 and goes until the end of the video at 1:36 (6 seconds later). I'm trying to put the last part of the video in slow motion (of course :), but I'm having 2 problems.

1. it won't let me split the video close to the end (I only want to slow mo the last 6 seconds, but it is making me split at least about 10 seconds)

2. If I do try to split is sooner...like at 1:20, it cuts off the last several seconds of the video (in other words, the split video is only 1:27 long instead of the original 1:36...which is horrible since I'm losing the best part of the video.

Please help!  Thanks in advance :)