While turning the TM does indeed smear the SI image ... it is very feasible to stop the forward travel and back up over an interesting target that may have smeared in the SI image ...(SI works in boat travel reverse also - just remember the SI image plotting doesn’t change from top to bottom) ...

Then after passing by that interesting target in reverse - stop rearward travel and continue forward travel trying a 3rd time to get a discernible SI image ...

Try SI on the TM - if it becomes too aggravating - then explore pole mount options ...

Rickie