Unstable tests, widespread cracking on Ernest Miller

Got ECTP10/11 in a pit on an east facing slope at 9100'. The snowpack is about 60cm deep, with 30cm of facets and 30cm of fist to 4 finger hardness new snow . The test failed at the interface of the old facets and new snow. 

We decided to keep the skiing to below 30 degrees. After skiing one slope and skinning back up, we noticed widespread cracking around our ski tracks (image), but luckily the terrain was mellow enough that nothing moved.