1.the verry top of the plant
2.no just the top
3.i'm not sure i have never tryed it on lower branches
4.the size is up to you it can be done at any time durring the veg stage but make sure that if you fim the top you give the plant enough time to recover

good luck-Bomb
smokinbomb Reviewed by smokinbomb on . fimming? I just heard about this new topping technique called "fimming or FIM. Apparently it's just a simple matter of topping the plant in the middle of the node instead of below it but, i've never heard of anyone who's done. If anyone out there has any experience with the FIM technique could you please let me know how it worked out for you. Thanxs in advance Sweet Rating: 5