Flats are why I switched my laced rims for chrome
America mags. Included is a link showing mine along with reasons why I switched.
I wouldn't get the Speedmaster mags unless you intend on getting the dual front disc settup. The America mags have been on sale from the UK on
EBay Cheap for at least 50% off. Not sure what the shipping would be but they really get a lot of positive comments and are easy to change.