[Koha] loans and bulkmarcimport.pl

We are in the process of migrating from DBText for Libraries to Koha. I've worked out procedures and scripts for migrating the borrowers and catalog (not including archives and serials). Has anyone worked out a way to import loans? If I do get all the loans entered, will a final 'bulkmarcimport -d' cause problems with 952$q and s or any other field? -- Bob