same on-ramp question for both positive & negative feedback

The classic MT feedback model is to always use the same question before feedback (whether that's "Can I give you some feedback?" or any of the altneratives discussed in e.g. the "A Different Feedback Model Question" podcast) -- to introduce both positive and negative feedback.

Is there any data on using a different on-ramp question for positive vs. negative? I reread the shownotes for "The Manager Tools® Data - Feedback" and it didn't seem to indicate whether this had been tested.

In the book "When They Win, You Win" Russ Laraway recommends the following two feedback on-ramps:

Negative: "I think I'm seeing some behavior that I believe is getting in your way. Are you in a spot where you can hear that right now?"

Positive: "I want to take a few minutes to call out something I saw you do today that I really liked. You got a sec?"

The reason I ask is that I've been doing the same question ("Can I give you some feedback?") for both, and trying to do lots of positive feedback, and sometimes I feel like I'm playing some sort of guessing game with my directs with using the same on-ramp question. (This is an all-remote team, and I give all this feedback via videoconferencing - mostly at the O3, sometimes an impromptu Slack huddle.) In the case of positive feedback, it's mostly a question of whether they have time to hear it (and they almost always will want to), whereas in the case of negative feedback, it's mostly a question of whether they're in a frame of mind where they can hear it. And I feel like Laraway's question for negative feedback might better prepare them for what the conversation is going to be, rather than feeling "set up" by an innocuous question.