I would need to try, but I know that I enjoy Catalan cream much more in the .5-.75% range. Caramel, equally, I taste more at lower concentration. I'll come back to you if I get time to experiment wit ha low flavour version of the recipe.
You know, Butterscotch is like that for me! I'm going to make a variation of this recipe to see how that turns out! Thank you for the idea! I will publish if it turns out well!
Not enough to give scientific results. @msait. Chapel made an update of the recipe that they seem to think is as good or better with much less flavours. Maybe you want to try this