okay ladies and jellyspoons
say someone was going to crack open 200 beans.... how long would you wait to pick off any weaklings? or would you let all 200 do the damn thing?
I'd personally wait a couple weeks. If it was small but still vigorous, I'd let it go a bit longer. Some of the best plants I've had, had a rough start and were smaller than the others, but super vigorous. Prime example is my Pineapple Express. It was SO MUCH smaller than the other plants I started. I started 2 packs of BTOG, an OG#18, and a Connie Chung, with the P. Exp. The P. Expresss just did not grow fast... at all. Slower than EVERY other plant I have ever grown. But no matter what I did, the leaves were pointed to the sky and it was green. By the time I transplanted the others into 5 gal buckets, the P.Express was still tiny, but I had the space and I wasn't pressed to get rid of it, so I let it go longer. By the time it was big enough to flower, it had picked up quite a bit and was very vigorous. In flower, it is out performing many other strains that I have and has a top like a nerf football.
Then again, there are the Seedsman skunk which I did that too and they never took off and were a waste of time and space and I regret ever getting them and running them. Use your judgement and if it looks like a loser, drop it. If it looks like it might have some potential let it go. I never let anything go without really thinking about it.