I'm not sure about the 3x3 tarp, probably not though, the cloudburst has pull out points on it so the spreader bars don't touch the tarp and it is an extra 30cm or so longer.
Although if it is long enough, you could use a small smooth object and put it on the inside of the tarp where the pull outs should be and tie guyline around the object through the tarp and that would work the same... not sure how well I explained that. :confused: