Yes, morph care is the same as normal wild-type care. One exception in snakes is that albino morphs can be more light-sensitive than normals.
Your snake should have finished digesting its feed after 48 hours. I would leave it two weeks before offering another feed, as it will need to build up its digestive juices again. Check your temperatures firstly, with a digital thermometer. Ensure that the probe is at floor level directly under/over the heat source.
Try a smaller prey item with your boa, it may be that she regurged because it was too big. Failing that, if after a fortnight break she regurges again, a trip to the vet with a stool sample would rule out any internal issues.
As for your royal, have you seen the sticky thread in the snake section on feeding problems? What have you tried fro this thread so far? Can you describe the viv, temperatures, and general husbandry you are keeping them in?