I'm 7th gen lancer cav/1h/shield hybrid...
I thought the same thing, until I tested - listen to the veterans above, they know what they are talking about.
I only have 1 wpf, with 91 1h and 82 pole, at lvl 30
And I do better than when I had the build with more wpf like your proposing.
Try it atleast, if you have several generations left before you want to permanently stop retiring.
I'm str 24 though, you may need a bit more in pole if you have less str, and want to continue to one shot people to the head from horseback...