600g yield would be very good, 350 would be average maybe for a 600W in soil but depends on space and veg. time..., nutes, water, stress etc etc... 0.5-0.6grams per watt is reasonably good : 300ish to 350ish...Looking at photos hard to guess but i will give a stab at guessing 290-295g. Let me know, and Please don't get impatient and pick em early!!