Kristin,
I have tried it in the past too. I am not and expert by any means infact I feel like I half failed in my attempt. I have Ross rounds and was able to successfully get some capped but from my understanding and prior sessions listening and learning from Herman Danenhower; honey flow timing is very important. Listen to this and it may help;
https://www.youtube.com/watch?v=YMqMINWAGvI
https://www.youtube.com/watch?v=ErZfkGNs_PY
Good luck - Many people are very successful with this system.