Thanks all for the suggestions!
Last dumb question. When looking at different insurance coverage, the "Aircraft Physical Damage or Hull Damage" covers the potential damage TO THE AIRPLANE AND AIRPLANE ONLY, correct? The other coverage such as Bodily Injury, Property Damage, and Medical are for damages to things OTHER THAN the aircraft? So if my flight school offers rentals in C-172s and C-182s and I predict that I will rent both at some point, I really need to figure out the cost of the most expensive aircraft I'd potentially rent, and request that level of coverage. For example, if that turns out to be a $90,000 C-182, I'll need to make sure I have at least $90,000 physical damage coverage. Is it as simple as that?
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Also on a bit of an aside...
The bottom of the renters agreement at my flight school is as follows:
"I understand an hourly rate of $3 will be charged to cover the insurance deductible or I may also elect to choose another insurance company of my choice. This rate will be charged only when not flying with one of our instructors. Without either of the above there is $ 2500.00 deductible on Single Engine, Fixed Gear Aircraft, and Retractable Gear Aircraft and a $ 5000.00 deductible on Multi-Engine Aircraft. Please initial below if you wish to pay the hourly fee."
If I'm reading that correctly, if I do not have my own insurance in place, I can elect to pay $3/hour extra and receive their insurance coverage, otherwise I will be stuck first paying a $2500 deductible before their insurance starts paying. If on the other hand I have my own renters insurance, I can waive the $3/hour and use my policy.
I guess the big question is how much their policy will actually cover me. I have heard that some of these FBO policies cover the FBO and their aircraft, but not YOU as the pilot. In which case the policy may be near worthless and you'd be better carrying your own as well.