How to exclude segment groups if BULKCOPY is used?

I inherited an Xlate using a BULKCOPY  (yuck).

I need only send INx grouping that are active insurances (IN1.13=NULL).

The code I inherited to suppress the inactive insurance groups is:

ITERATE    Type: group, Basis:  5(0).0,  Variable:  %g1

IF 5(0).0(%g1).IN1(0).#13(0).[0] ne @null

PATHCOPY  @null  5(0).0(%g1).IN1(0)

PATHCOPY  @null  5(0).0(%g1).IN2(0)

PATHCOPY  @null  5(0).0(%g1).IN3(0)

Running this code results in:

IN1 (nothing else in this segment – this is the INx group to be skipped over since IN1-13 <> NULL)

IN1|2|normal segment from this point, IN1-13 = NULL

IN2|2|normal segment from this point and is the IN2 that belongs to the IN1 immediately above

Without having to rewrite the XLATE and replace the BULKCOPY with COPY/PATHCOPY, what are my options for preventing the creation of the NULL IN1 segment?  I understand that by skipping over IN1 segment groups with terminated insurances, my output may include IN1 segments with set IDs skipped over and not in sequence – sometimes this is not an issue for the downstream system.

Thanks in advance.