It seems to break about the same for me, maybe somewhat more often. It's especially noticeably more streaky, with one break often being followed with many more (5-10, seriously) within a few minutes. All my experience is with pets that are always tashed+maloed prior to being recharmed. No additional -MR gear. I stopped in Kedge earlier today at lvl 52 and charm broke 2-3 times on lvl 34ish green tashed fish at the entrance.
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I've also noticed a crazy crit resist rate for the lull line recently, which I'm not at all used to as a 247 cha enc. About 7-10 days ago I was ~47 doing Sol B royals and out of 8 attempts I got 1 to land, 1 regular resist, and 6 crit resists. I haven't really tried using lull since, so I don't have a better sample than that. Maybe I was just unlucky. It was certainly a shock to my group and I.