Javilens shouldn't be effective against armor; when the 100 years war spilled over into Spain the Castilian's found their Jenites utterly useless against the English men-at-arms. On the other hand the Men-at-arms couldn't catch the Jenites because they could scamper so fast. CA seems to be big on this for some obscure reason.

The English is Spain? Well read about it here
http://paginaspersonales.deusto.es/a...najera1367.htm