We always do a Strength Workout before a Metcon WOD. However we don't seem to focus on oly lifting as much as some probably because 75% of people there are 40-60 years old and fairly out of shape. I just didn't gain much strength and I was going 4-6 hours a week. I have an underdeveloped upper back imho which doesn't help when going overhead once a weak. All of the games athletes do tons of strict strength with metcons mixed in. Plus I still have some mobility issues in my ankles that limit my OHS and snatch. I came to crossfit from a running and hiit background. Not so much a marathon runner but a 5-6 minute mile average over a few miles .