Absence of strakes on 20 footers

[McGillicuddy]

I was staring at my Seafari in the rain today (looks kinda like a sexy gecko from the front, eh?) and it struck me that the hull lacks a lifting strake on the bow near the keel. The 18's have it and so do the 23s. Why not the 20s? Did I get duped or are the 20s so right that they didn't need it? Is this why I need a stern-lifting prop? Speaking of which - Is the Solas Titan series a known quantity? Any ideas why the strake variance, does that mean I don't have a CSC