what would be the purpose for this? is there any separate strategy you have in mind?

Because otherwise it'd be just a normal GoW run that ends in grave digger..

I like this idea for a category extension, may actually bring some people to do COTG considering how stupidly difficult COTG is

for this glitch, all you need to do is to press L1 and X, then when you are in the air (keep blocking) you do the L1 + O movement, but instead of keeping the O button pressed you tap it multiple times, then it will skip the whole animation and do the movement as if it was fully charged. it can save a little bit of time.