Thank you for your suggestion. Good news, courtesy my LHS the problam is solved.
The isolation at the entry and exit point need to be stagered just enough that the first two pick up wheels will not be in contact at the same time across the two rails. Cheers, pjf
The isolation at the entry and exit point need to be stagered just enough that the first two pick up wheels will not be in contact at the same time across the two rails. Cheers, pjf