Hi Mark,
I don't know if you are already an experienced adjuster or not so I will just give you some general information from my experience with the AIC program.
I started and completed the AIC designation in 2006. I thought it was a very worthwhile expenditure of time and money.
You asked how much study time is needed to pass the exams. I would guess this would vary greatly based on one's reading speed, comprehension, experience and background. When I was studying for the AIC I had only been working as an adjuster for about six months but I had spent months the previous year training for adjusting. I had also been an insurance agent for 20 years prior to starting in adjusting so the policy part was mostly familiar territory. I would guess that I averaged maybe 14-20 hours per course studying. If one had no prior insurance and/or adjusting training, I would think it may take somewhat more. It would have for me anyway. The exams are not what I would call "easy." You have to know the material.
It is my understanding that there are group classes available in the larger cities for AICPCU course study and that there are companies that offer study kits like flash cards and so forth for the AICPCU courses. I think there are study CD's available too. If you Google "AIC designation" all kinds of things come up. I used the standard textbooks that came with the courses and did not use the workbooks that were provided. I would read the textbook twice and the second time I would highlight things I knew would require additional memorization. Then I would go back and spend more time studying those highlighted items. I only had to complete 3 courses to get the designation because I had another insurance industry designation that waived one of the courses.
When you say "Is it worth getting the designation as an independent?" do you mean "Does it help you get work?" That is a tough question from my perspective because my husband and I work together. We started in adjusting at the same time in late 2005. He had about the same number of years of construction experience as I had insurance experience. In the past two very lean years we have been very fortunate. We have been able to work daily claims on and off for 4 different vendors and we also worked one wind cat in 2007 in the Midwest for a 5th vendor. It hasn't been steady, full time work but we can honestly say we have 2+ years of experience now without ever having worked a hurricane except as unpaid assistants for Hurricane Wilma. When the vendors looked at our resume I don't know if my AIC designation swayed them our way or not but I'm sure it didn't hurt. They had a large pool of newer adjusters to choose from and we got work. It may have nothing to do with designations and may just be that we sent out the most resumes!
There are a lot of good training courses for adjusters and we have been to several but the AIC courses go further. I think they give you a greater understanding of the principals of insurance that you can use to help educate the insureds you work with. Most people will change from unreasonable to reasonable if you can explain why things are a certain way instead of just telling them "This is how it is."
In addition to CE credits, you can earn college credit for AIC courses.
Good luck if you decide to pursue the AIC. I'm sure you won't regret it.
Kim