Hello Jonathan
'Cmiral's yellow' does not grow well and only produces few offsets as I learned. Martin Haberer, the German breeder and collector I will receive both 'Cmiral's yellow' and 'Goldsternchen' (the second semp with bright yellow spring colours I know about) from in autumn, did not recommend them for starters.
Seeds won't help you at that point, as semps usually do not come true from seeds, even if crossed with themselves.
Are you just starting or are you expending your collection? Could you post photos of the semps you a already got?