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What is your opinion regarding hreflang? We have a .company.com site and franchised other English sites, like company. co.uk, company.com.au etc  - and we share one database. Our other English sites don't want to have to change on-page content by the rough 30% for Google and wanted to know if including the hreflang would mean they would not have to change any content anymore - only the metatags? I don't think that's possible on TLDs, and we can't have our .com content being duplicated.

If you have a java-script slider on the homepage, each slide has an H1 tag heading,  which of the H1 tags would google most likely consider? all of them or just the first one?