For anyone that cares...
Natural refresh via either Verm. or Ixion Cloak will beat AF1 Sublimation effect on SCH in your standing setup. I'm almost positive this was mathematically shown early on in one of the SCH threads here but it seems to come up still.
Here's an example of what I'm talking about on Alla
They managed to completely sub-default the guy claiming that natural refresh + 2 mp/tick sub is better than no natural refresh + 3 mp/tick sub. Remember that the 2 appear equivalent (1+2 = 0+3 right?), but this simple comparison doesn't take into account the fact sublimation is not always active due to full charge or the 30 second JA delay recast between uses.
In short, if you are rich enough to afford either Cloak, it's technically better than AF1 for standing setups. If you're one of the few SCHs that cares about soloing, then the difference in HP loss (+1 if comparing Verm to AF1, +2 if comparing Ixion to AF1), then Cloaks are much better since Regen matters more then. If/when SCH gets a non-cloak body refresh, AF1 hat will be amazing though.