I study JKD concepts here in the UK on a Tuesday and Thurday evening. I have been studying this for about 7 years now. However more recently I have started to explore and have started to study Warriors system of eskrima and I do find a significant difference in that the emphasis is always on the weapon. Yes that is emphasised at JKD but not to the extent that it is at eskrima. Infact I have found that it tends to complement what I am taught at JKD because I can graspe a deeper understanding into the techniques that are taught. Sometimes I feel that it is often better to gain a little extra training in the areas that interest you, especially if you are a JKD practitioner
Quite a few of my training partners have similar views too, many from experiances with different arts though!