I currently have the Amex Business Explorer card, which earns 2 MR points per dollar. But these are Gateway Points - so 2 Gateway MR = 1.5 Krisflyer.
I am thinking about whether I should also get the Platinum (personal) card on top of it, for its many benefits. The Platinum earns 0.5-3 points per dollar depending on the merchant but crucially, the points are all Ascent points. So 2 Ascent MR = 2 Krisflyer.
My question is: After I get the Platinum card on top of the current Explorer, when I use the Explorer, are the points earned still Gateway MR or do they become Ascent points also? I.e do the two cards simply earn its own class of MR points and show up as separate classes in my account or does getting the Platinum “upgrade” my future Explorer MR points to Ascent as well?
I have read conflicting information after a search, hence the ask. Thanks in advance.