"the big question is why would a het exhibit this while a normal wouldn't?"
If the single piebald gene in a het is causing this marker then that would be an explanation.
"Diff genes on the same allele, so if you see one the other must be present?"
Are you suggesting that maybe the marker is a different gene linked to the piebald gene by being close to it on the same chromosome? I guess that could explain why some hets have the marker and some don't. In some lines a crossover has broken the link and in others they still go together. It's just that the marker looks so much like the start of pied that I think it actually is the pied gene and not a separate gene.
"I just have a hard time believing this? I think a larger sample size is needed before this can hold true. It seems like the numbers are skewed...meaning people are reporting producing pies from poss hets which exhibited the lines, while those who produced pies from poss hets without the 'markers' aren't as vocal."
There are certainly people out there with enough experience to settle the question of if there is anything to this particular marker or any other. While we’re waiting for them to chime in we just have to speculate.
"Randy, have you produced any pieds yet from your poss hets? This isn't an antagonistic comment, I am just curious...i honestly hope you do."
Not yet. I can't seem to do a good enough job of feeding to get things to breed as quick as I would like. I have four 25% chance girls that should go this year but none have the marker (actually one might have a little depending on how loosely you define it). Three of them are out of my oldest 50% chance het and he doesn't have the marker. I got a single baby from him and his biggest daughter this year (bad eggs) but she wasn't pied, only a little classic jungle like (due to the stress of the bad clutch I think). All my good marker females are 03's and pretty iffy for breeding this year.
I did breed a 50% chance het male with the marker to a pet store girl that sure seems to have the marker (the marks curve in a little at the start so maybe just some sort of belly ringer thing). It was another dismal clutch (3 slugs, 2 infertile) and neither hatchling was pied but both where markers. I'm going to send her to breed to a markered 100% het pied this year to hopefully get an answer one way or the other on her being a marker identified random het. I think that statistically there should be lots of hets of various types of morphs in the general population; it's just that it is unlikely you will pair two of them up. If there are markers you can increase those odds.