Jay,
escrima is a great art. I had a chance to workout with Sonny Umpad in Oakland 14 years ago. Line, angles concepts arevery similar to Wing Chun. I do like the way they attack the limbs though... its a great progression from the limb to the body... I know Dave McKinnon does Escrima as well.... he could be a good source to talk shop with...
I'd love to hear more about your perceptions and how Escrima approaches things... its great stuff!
Pete