Honestly, I dont know the vendor specific behaviour of the MSI AM4. If the memory is listed on your motherboard's memory qvl i would expect it to work with its XMP profile - otherwise i would expect to tweak to get a given speed. I would only get the 3600cl15 kit if you enjoy tinkering with bios and the ryzen dram calculator. If you want hassle free plug and play with xmp i would get a 3200cl14 kit thats on the qvl for your board. Then later, if you feel adventurous you could try to stabalize that 3200 kit at 3466 with laxer timings.