If one uses 4NT RKC for the majors,1430 normally does not create a problem. However, it may create a problem for the minors should the suit be clubs. Playing Minorwood/Kickback 1430 is also fine, but again one may be forced to use 4NT RKC for the minors at certain stages. The question is, if you use 4NT RKC for the minors, is 0314 not better? This topic may have been discussed in the past, but I could not locate it. Regards