if you are going to top usually most strains take between 4-7 days to recover some can take longer or some can take less, So to answer your question yes it is all strain dependent but most strains are 4-7 days once again. Super cropping also knowing as the pinch and bend technique (works awesome!!) and usually stresses a plant 1 to 2 days at most. if you have a time limit to veg the supercropping technique will work great for you and should increase your yield up to 15% I usually do both but I have abit more time to veg my suggestion is to just supercropp for now if time is critical for you. If you want to give them the extra week of veg all the power to you try both if you can. As for topping more then once I only top my plants once for the fact that I like to stress my plants little as possible.