Look at the Accuquilt website or maybe even on YouTube - but I know the Accuquilt doesn't do the EPP method. There was an episode of "Simply Quilts" where the lady showed that she had one of those heat resistant templates and she used it to iron the turned part - actually I believe she starched it to give it extra hold. And I believe she did the running stitch over the shell, then pulled and drew it over the template to get the even curve before she ironed.
"Simply Quilts" was a great show - I wish HGTV would bring it back.
The major issue she mentioned if I remember correctly, was keeping the row straight as you go across. So keep a ruler handy to measure from piece to piece.
Good luck! I hope to make one some day.