My son got the greatest kick out of the that. There has to be losses when stocked like that but there will be losses with the milk containers too. But I can vouch that enough survive to make great fisheries that are only accessible by hiking trails. I have some great memories of a few of those lakes (in Colorado). It's something everyone should experience if afforded the opportunity. Watching mountain goat and bighorn sheep on the mountains surrounding you and catching salmonids (whatever they stocked) on flies. Doesn't get much better than that.