The following are Sam's MyHeritage, Rose's Ancestry, and Vanessa's Ancestry genetic group estimates. The darker outlines are the groups with a higher confidence level. Being a member of a Genetic Group means that there are genetic similarities between your DNA and that of the group’s founding mothers and fathers. A high confidence level offers a strong indication that you are indeed a member of this Genetic Group.
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Sam
Rose 
Vanessa
We'd like to discover where Kasimerz and family lived before 1820. So Sam uploaded his autosomal DNA to GEDmatch in general and then added them to specific projects. There are about 1000 members in the Lemko project of which 550 are his 4th-5th generation cousins. Out of the 500 in the Ukrainian project, he has 100 cousins. Without a paper trail (primarily church registers), it is difficult to confirm distant cousins. After contacting closer matches he found cousins living all over the former Galicia. Given that our families, except the Popels, were serfs and tied to a village, this is indicated that Popel families were widely spread across central Europe at the time Kasimerz lived. That is consistent with what we've read elsewhere. The results were not much help narrowing down where Kasimerz lived before 1820. He found no one closer than a fourth cousin. So, as many have found, it is not that helpful tracking down old country genealogy. As more people get tested, we may find closer matches.
Sam also had his YDNA analyzed at FTDNA and the results are consistent to what we already know. A match to Robert Matusik was found. We had the same grand+father about 800 years ago. His grandparents lived in Krosno in the 1800s, which is about 75 miles from Chmiel. Robert apparently has since passed on, however.
Our male ancestral path (Haplogroup) was determined to be:
I-L758> M170> P215> CTS2257> L460> P37> M423> S2770> CTS11030> CTS5375> CTS7213> S10302> L621> CTS10936> S19848> CTS4002> CTS10228> S20602> Y3548> BY128> Z16971> Z16972> A815> FGC92673> A5875> A5874> A5876> BY62995
By1400, the terminal haplogroup BY62995 is estimated to be living in what is today's southeast Poland. The YDNA shows that the Popiel ancestors belonged to the Dinaric North race, a predominant race of Central and Southeastern Europe. See https://arktos.boards.net/thread/527/dinaric-race for more info.
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DNA Test and Analysis Notes
DNA genealogy analysis is complicated and usually does not provide more than window dressing without some effort and luck. For those that are interested and are on a budget, buy a test kit on sale from an outfit where you can download the result. If you are interested in Europeans ancestry, use Myheritage. For US relatives use Ancestry. FTDNA is the only one currently suitable for YDNA (Male). FTDNA's family finder is a good start, which males can upgrade to YBIG if desired. There may be others. FTDNA'a analysis tools are provided free while others offer analysis tools with a $$ subscription. You should be able to do the same or better by perusing the very good and free Familysearch indexes and libraries and the Polish or Ukrainian on line archives. MyHeritage and Ancestry ethnicity estimates have had a lot of criticism, but MyHeritage seems to be getting better. Once you get the DNA results, upload it to a free GEDmatch account and run a couple of its free tools. Their tools use better science than those offered by Ancestry or Myheritage, but they are not as fancy. There is not much instruction on what the results mean, however. As first step, contact close matches (more than 20 cM common segment length) and see if there is anything you have in common. You may get lucky.
In summary: FTDNA Family Finder isn't too bad, and if you don't want to buy Big Y immediately, you might want to consider buying Family Finder instead of doing autosomal upload from Ancestry or MyHeritage. 23AndMe has good haplogroup, but your 23AndMe haplogroup won't be visible to your FTDNA matches after autosomal upload. YDNA test help make scientific progress, but to get something really useful to you personally in the current time frame, there is a Rule of Three thing. The Rule of Three needs two close males, father/son, father/his brother, grandpa/father, father/grandson, etc and a second cousin distant male.