I have often wondered why T2s seem to have a much worse time with complications than T1s, often in spite maintaining good HBA1c results. According to this speech transcript from Dr Mercola's site
http://www.mercola.com/2001/jul/14/insulin.htm# , it is because T2s are insulin resistant and the damage done by excessively high insulin levels. It is a good read.
Cheers,
Mark