A sigma is a sigma, but as far as I know, you just don't get capital digammas, because that letter was obsolete by the sixth century BCE. (We'll gloss over my inability to pronounce a final /w/ as a glide, rather than as a signal on how to pronounce the preceding vowel.) And if H and F are Greek letters, I think it becomes SNSMU OW TEE STATS.
(no subject)