Why is Budurl traffic not showing in my Google Analytics?

So I'm noticing some huge inconsistencies between the traffic budurl.com says its referred and the amount that shows in my google analytics. For example I use budurl largely to shorten links that I promote in Twitter. In one month my google analytics may list twitter as having been a referrer for 100 clicks, but Budurl will say that I had 300 clicks on the link in the same time period, mind you I only place this link on twitter.

I have bot/webcrawler stats turned off, am I missing something here. Is there no uniform place to find budurl traffic in analytics because of this 307 redirect?