Awks, I found another error. In GET statuses/user_timeline the request per limit window is 15 but the response headers I received was:
HTTP/1.1 200 OK
X-Access-Level: read-write-directmessages
Content-Type: application/json;charset=utf-8
Last-Modified: Sat, 13 Oct 2012 13:12:56 GMT
Expires: Tue, 31 Mar 1981 05:00:00 GMT
Pragma: no-cache
Cache-Control: no-cache, no-store, must-revalidate, pre-check=0, post-check=0
Set-Cookie: guest_id="v1:135013397637509390"; Expires=Mon, 13-Oct-2014 13:12:56 GMT; Path=/; Domain=.twitter.com
Set-Cookie: lang=en
Status: 200 OK
X-Transaction: 44a041db1b28b91f
X-Frame-Options: SAMEORIGIN
Date: Sat, 13 Oct 2012 13:12:56 GMT
Content-Length: 56714
X-Rate-Limit-Limit: 180
X-Rate-Limit-Remaining: 179
X-Rate-Limit-Reset: 1350134876
Server: tfe
Which means GET statuses/user_timeline really has 180 requests per limit window. Can you confirm this @episod?