I'm also enjoying making drawbridges in Pfx2. Here's one weird one, it starts out as a rectangle then deforms into an arch:
http://members.optushome.com.au/sbiber/stuff/tut3-weird-ralmin.jpg" border="0">
http://members.optushome.com.au/sbiber/stuff/tut3-weird-ralmin.zip" target="_blank">Download bridge.