It's fine.
You shouldn't give free equity and you have a huge range advantage here as they should fear AAxx(x) so you shouldn't be raised often.
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so I bet on the smaller side thinking larger would not get called by worse
I tend to think this is the NL way of thinking and not nearly as applicable to PLO(5). Perhaps someone better can throw in some input. I don't think the sizing's bad or anything, just the logic behind it is what I don't agree with.