I guess my point is that what we are dealing with here is a judgement call based on experience, comfort level, pack size, technical knowledge, etc etc. There are going to be pros and cons to each side of the debate, but I would never say one technique is better than another. There is a time and a place for a Kiwi Coil, chest harness, or no chest harness. The chest harness is a function of the size of the pack that you have on. At some point you need to decide that the weight of the pack is great enough that the discomfort and difficulty of stopping a partner's fall does not outweight the probability of being upended and potentially seriously hurt when falling into a crevass with a heavy pack on.