As an update to Cerberus.Tidis' comment, the Fi Follet Cape +1 has 10% Fast Cast at R15, thereby giving you the 10% option for all of these jobs without having to make Ambuscade capes for them.
PSA: If you're looking to maximise FC, you can get 10% on an Ambuscade Cape.
Of course having a utility FC cape can be useful, even if it's only 4%, the question being, are you going to make FC Ambuscade Capes for all your jobs that need them?
