Like j bone says it's alright to bend in veg but into flower I wouldn't bend the plant as you will probably stunt growth of your final product and do more harm than good
I water when the top level of my soil drys and I put my finger in 4cm down and it's dry.. I do t want to overdo it as the soil has Jutes in it so. It's hard to judge I just see how they react to different things but ATM I'm just going low on the liquid nutes might bump it up soon though
Hopefully mate just seems a bit crowded in there tbh don't know if it's me being paranoid this is my first grow I would be happy with 4 oz per I'm shooting for 20 oz from the lot