Axial Electrolytic Cap Polarity

[mutagenic]

Hi, Noob here.
I know this topic's been discussed before, but I couldn't find anything addressing this specific question, and the only thing I could find on a Google search was this:

http://en.wikibooks.org/wiki/Electronics/Component_Identification#Axial_Electrolytic_capacitors

I'm trying to determine polarity of a 47uF axial electrolytic cap.  There's the black stripe on the side with the negative sign, but no arrows indicating which end is which.  One end does however have black rubber insulation.  Is that the positive end?  I thought I could identify the positive end by the length of the lead coming off the cap (on the radial caps, the positive lead is longer), but on this cap the shorter lead is coming from the end with the black insulation.
Thanks in advance!

[Jake Lessen]

In your link, there's a pic of two capacitors side by side.  On the axial one, the line with the negative signs on it is a series of arrows that point to the negative lead.  Somebody correct me if I'm wrong, but I would say that there is an arrow somplace on your capacitor, probably like that one, that points to which end is negative.

[Tubebass]

The end with the rubber insulation is indeed positive.

[mutagenic]

Thanks so much!