Furcas, confusion of sigils? Options

Well, i am kind a new, but i am enough experienced to evoke some of the goetian spirits!
I study some of thems, and i found FURCAS:

Furcas is the Fiftieth Spirit listed in the Goetia, who governs 20 Legions. He appears as an old man with a long beard & hoary head, carries a sharp weapon & rides a pale-colored Horse. He teaches the arts of philosophy, astrology, rhetoric, logic, cheiromancy, & pyromancy.

ok, it's all ok, BUT, i saw two different sigils, and i don't know which i should use (IMG:style_emoticons/default/13.gif)

(IMG:http://academyofsorcery.com/courses/ACS/furcas.gif)

(IMG:http://www.deliriumsrealm.com/delirium/images/seals/furcas.gif)

if anyone want's to know why i want to evoke him, it's because i want him to help me whit philosophy, astrology, rhetoric, logic, cheiromancy, & pyromancy. (IMG:style_emoticons/default/13.gif)

Try 'em both and see what one works better. *shrug* Bune's got two sigils as well. The first one tends to work better than the second, but the second will do in a pinch. And there is a lot more variation (read: the two are radically different) in his than in yours.

Let us know what happens.