Maybe, i think it was called "spears- are they worth it?" or something like that. I run my spearman in 2 35 man units (ok, i love spearman units) 7 wide and 5 deep. this means on the charge they do just as many attacks as the hand weapon option, but if charged or from the second round on combats onwards, they get an extra rank, ok they lose the 6+ parry but bearing in mind your saurus are T4 standard, and i always take a life slaan so there's a good chance they won't be T4, More like T6 or even 8!, the extra rank in various situations i personally feel its worth it.
Yours Aye
Mixer