Boards results out. Thankfully passed.
For what it may be worth: studied July onwards for this and cardiac CT cert.
Did ACCSAP9 and ACC board review 2015 which was available for free on cardio source.
O keef for ECG
Nothing specific for Echo or Angio.
Overall, 3 months of SAP9 + any review course + ECG o keef or ECG source should be enough to safely pass.