What I have done in the past is to not just split and slowmo the the clip, I've split the slowmo clip into a few pieces and progressively slowed each clip progressively more until I get to the section I want the desired effect.
Being a PD newbie I have to ask how I can find out "how much" I have changed the speed of the clip. My previous editor showed a playback rate so that I could see how far off the original I was. This way I could refer to the modified clip properties to get a smooth transition into slow motion.
Update: If you want to use my method to transition into slow motion; Power Tools > Video Speed.
You can slow each of the split slips down a bit more than the preceding one until you get to the desired speed. Tedious I know, but for now that is all I have to offer.
This message was edited 1 time. Last update was at Jan 26. 2012 14:07
Richard
PD10, build 10.0.1129b SR VDE111213-07
Windows 7, 64-bit, Intel Quad core 3.3 GHz, 4 GB RAM, Intel on board graphics display (shares the RAM), 931 GB free space