We have our domains like,
example.com/page/ID/descriptive_title. For emails and links we use,
example.com/page/ID/, because it's easier than typing out full titles.
We have our site configured to throw a 301 and redirect back to the titled URL because we thought a descriptive URL would be better than just an ID for SEO.
I've read a few places recently that connecting via a 301 can drop a pages rank by 10%; or rather only give it 90% of it's credibility. Is this true, and if so would it be best to just have the
example.com/page/ID/ return the 200 with the canonical link element?