One of the most important things you can do when choosing a sire is to create the profile of what works with respect to the mares that produce their top performers. An article on Standardbred Canada caught my eye because it dealt with a three year old colt by Pet Rock who has won his first three starts. The profile for his sire is predictable based on the profile of Rock N Roll Heaven, a sire with an almost identical pedigree.
Both sires have maternal lines of Artsplace (Abercrombie) and Cam Fella (Most Happy Fella). Mares with these sire lines are prime candidates for these sires but for some reason Rock N Roll Heaven seems to also favor mares with Big Towner maternally. Seven of his top 10 show this connection. That would indicate to me that Pet Rock would show likewise and although his offspring are just three year olds to date it appears to be a key for his success. I was interested in finding out if Larrys Petrock, the subject of the article, fit this profile - his third dam is in fact by Big Towner. The profile for Pet Rock shows 5 of his top 10 with this connection.
While not all of the offspring of these two similar sires have Big Towner maternally that feature is something that cannot be ignored if not entirely explainable. Most of the others show combinations of Abercrombie and Most Happy Fella as expected.
Picking a sire is not that difficult, just do your homework with respect to the profiles of the sires in which you are interested