Some folks seem to have good results. Others of us rarely see even close results between real/fake.
When dealing with that situation, I prefer to nip off the crawler 1/2" behind the rear hook. With some crawlers, you get 3 rods from 1 crawler, other crawlers only 2 rods set up out of 1 crawler.
Yes, I don't get the big girls doing that, but this is a different situation/condition. And it stops quite a few of the smaller fish from grabbing that long tail of a crawler.