I applied heat as instructed. One strip pulled free; One strip broke :-( Fortunately, getting one strip out is sufficient. You can then gently get the battery out even with one strip in place.
Suction cup supplied by ifixit worked for me. Of course I used all the tricks mentioned previously: Zip ties, work on one corner at a time, and work slowly - don’t expect it to pop out easily/quickly.
ifixit supplied a set of replacement philips screws (marked “Liberate!”). Thanks but I’m sticking with the pentalobe since they fit more securely than philips which have a chance of stripping if not held with the right amount of pressure.
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