All working great now. I’ve added my RFM69-Particle library in the community library on the Web IDE and includes working example apps (works with serial and dashboard if you’re not using serial).
I’ve heard from someone else that the RFM69 library did work for them. Maybe it just wasn’t compatible with the “H” higher power hardware versions which I was testing on. Anyway, RFM69-Particle should now work with all styles of the RFM69 hardware (make changes as required in the example code for your particular device/frequency/high power).