The snaffle may be added when he goes freely in the head-stall

<h2>The snaffle may be added when he goes freely in the head-stall</h2><br>
<br>
<p>The snaffle may be added when he goes freely in the head-stall.</p>
<p>A colt should never be buckled to the pillar reins by his bit, but by
the head-stall; for if tightly buckled to the bit, he will bear
heavily even go to sleep: raw lip, which, when cured, becomes callous,
is the result. Yet nothing is more common than to see colts standing for
hours on the bit, with reins tightly buckled to the demi-jockey, under
the ignorant notion of giving him a mouth, or setting up his head in the
right place. The latter, if not done by nature, can only be done, if
ever, by delicate, skilful hands.</p>


Fonte: Tamming Horses