Rollover is mitigated substantially by doing the following:
1) place the cocker string hooks with the hook opening facing down (unlike that for Excaliber).
2) brace back of bow with leg that's in stirrup, thereby pushing bow out
3) Shorten cocker string by about 2", helps pull up and back
4) pull back (toward toe of stock) while pulling up.
Doing these I had only one rollover...the first one.