It dawned on me that my test failure may be due to what I used, not that the method will not work. I hacked the test file from a P4 .lt2 and used it in P5. Being that it was spots with parenting and point at, I think P4 .lt2 with these settings will fail in P5. Or may fail, I am not sure that the reason for the incompatibility has been fully explained. I should make a P5 .lt2 and test this.