You need to make sure of one thing, the skeleton you used has the proper hierarchy and local transforms for each bone or you'll get some strange problems like ankles rolling the wrong way on slopes and neck rotating on a different axis when looking. I've been wanting to get around to remaking my rig in SI 2015 but lately I've been working harder than an ugly stripper and house shopping. BTW, the synoptic thing isn't very easy, best way is to get the base made in SI but switch over to Adobe Dreamweaver to get the hot spots drawn out in better detail, switching back and forth to check that everything works. Most of the scripting should be done in SI for simplicity but it's ability to draw a detailed hot spot region sucks especially in the small window they give you.