Hi. I have an iPad Air 1 WIFI only 32GB and use it basically for email, youtube, Netflix, and my MP3 collection. That's it. I have about 12GB free and 90% of my storage is consumed by MP3s. It has iOS 8.x installed and tells me I can update to iOS 11.x However, lately, the web browsing has gotten not only slow as molasses (it's not my wifi) but the webpages crash fairly often or don't render 100% simply because it's been 5 years and browser/web technology has changed just enough that Safari on iOS 8.x is cranky. So I am forced to upgrade to a completely new iOS (rather than just a new version of Safari because of course Apple would never do that). Sites I visit are CNN, boston.com, weather.com, slashdot.org, and Macrumors. My questions: 1)Since I am only being offered iOS 11.x, is it true that it is impossible for me to get iOS 9.x or 10.x? Does Apple only offer users "the latest and greatest" iOS or is there a way for me to pick and choose other versions in between? Obviously if I had upgraded last summer, I would have gotten 10.x...and if I had upgraded a year earlier I would have had 9.x. So why not now? 2)Will iOS 11.x bring this iPad to it's knees? I will deal with some not so great web surfing if it means that everything else performs great. But, I do understand that I'm very limited on what apps I can install/upgrade due to being on iOS 8.x (youtube, netflix being my most crucial). 3)Is there a way to revert back to iOS 8.x if 11.x is terrible? I believe I can do some kind of full iPad backup/restore via iTunes (I don't use iCloud) but would appreciate the exact steps if you can point me to a weblink. 4)iOS 11.x claims it is a 1.5GB install...what exactly does that mean? Is it a 1.5GB download (I'm on wifi so I don't care about the download) or will the OS itself only be 1.5GB once it is finally installed? What will my free storage be after installing 11.x (again, I have 12GB free now)...I'm hoping it's not going to eat more than a few hundred megs more than iOS 8.x It would be great to hear from someone who is/was in my exact situation and went through my 3 questions. Thanks in advance!