~Edit: I forgot to add -> I also recently tried smooshing the jiffy and this is a must!!! After you soak it, kind of rotate and squeeze it to unclump the medium. The jiffy will be nearly twice the size now and much better for roots to penetrate.~
Careful... some pucks have a different material that roots do NOT grow through well... kinda like the dryer sheet material instead of netting.The roots can break through the fabric without issue as we see in pics, so I don't think it would hurt them as long as smooshing had been carried out.
Yes dude. What is a widger? A thing for digging up seedlings?