Mongoose recipe drop

Hi guys,

I have already made 3 runs to Moroes in Karazhan and this formula still did not drop.
As far as I can see, it seems that drop rate was raised to 100% during WOTLK, so is this a bug?
Character has 447 enchanting, so that should not be a matter.

Best regards

1.05% is chance for drop

It was 100% for me, got it on the first try and then it kept dropping every other run. Make sure your enchanter is in range.