Heavy investment into spears results in Yeoman looking so much more tempting as opposed to Hobelar initially.

If you want to engage spears, be sure that your lords are the first thing getting hit because the spearman's health bar is depleted a bit too fast.

Sacrificing Yeoman for eco damage against Ottomans with Military Schools set up doesn't feel that good.

You definitely have to when moving out onto gold, berries, fish, to have those manors for passive generation. Use them as gathering buildings to get the most out of Lancaster, or you risk falling behind and getting out-tempoed by a civilization like the Ottomans.

In the late game matchup between Ottoman and House of Lancaster, House of Lancaster gets Yeoman and Spearman from Wynguard Palace, massing trash units. Ottomans want to make Janissaries and Sapahi, but both get countered hard by mass spearman and mass Yeoman, and with the Synchronized Shot volley ability, the Yeoman do incredibly well against the Janissaries.