If you cannot imagine $20 a share for the commons, then you have little imagination -- Moelis puts it at $17 for crying out loud, Ackman (prior to he favorable tax changes) put it in the range $23-$48 with well argued analysis supporting that...
But whatever... this board is full of people who have far too much time on their hands to argue for conclusions that matter not at all.
But, do remember UST has 79.9% warrants to sell. They need to pick a high price for commons. Given the current eps, $10 will be about right. So, commons are pretty safe. IMO. GLTA.