Do you recirculate for the full 60min (or however long the mash is)?
Do you stir the mash and rest (10-15min) before collecting?
Thanks.
Yes, vorlauf to ensure you're not going to try and pump a mess of grain through the system, and then start your circulation pump, and run it for the full mash session. I usually shoot for about 2 liters/min of flow.
The wort will be nice and clear at the end of the mash since it's been filtered through the grain bed for an hour. If you were to stir it at the end, it would end up all cloudy again (and you'd have to vorlauf and circulate again to clear it), so once the mash session is done, run it straight into the boiler, and start your sparge.