Typhoon Willing to bet I could shoot the same scores with those as I do my own clubs.
I don't think is related to handicap, though. I use a few different sets every season, with completely different make-ups...shafts/shaft weight/material, grips, lengths, etc., and get same results, score wise, with all of them. Yes, trajectories may be different, along with varied distances per same iron #, but at the end of the day, scores are mostly the same.
I'm reasonably sure there are many here that can also get same results. As long as they don't go 'mental' using something completely different than they did yesterday. Clubs....are clubs. Your swing....is your swing. Simple game. 😅