Angry Birds Space Brass Hogs Level 9-4 Walkthrough

I don’t see how you can kill the pig in the elevator and the crane operator without using a LB for each, therefore, I think one has to stick with a 3 bird strat:
* 1st LB through cable, closer to the gravity field than to the top of crane. Redirect before hitting the cable to the crane operator. LB does not always have enough momentum to kill it, but it happens very commonly. You get around 15k-25k, depending on whether infalling debris from cut cable killed or 0, 1 or 2 pigs below.
* You can use RB to loop around gravity field and ignite TNT, but it does not seem to be the best solution. I think that the best thing to do is to push the largest possible amount of debris above TNT without igniting it (to improve efficiency of next shot), but I did not find a way to do so efficiently. Alternatively, you can try to weaken the left part of the debris pile, but again, I could not find a weak spot in the pile. I think that there is a way to kill the pig that is in the center of the debris pile, but I have not found how to. You may have 32k at this point.
* Send LB above crane elevator, and redirect him down (slightly to the right seems better, although more difficult) when you are above the rightmost part of it. Shot it easier if you cut the cable high in the first shot, but then 1st shot is more difficult, so it is up to you to decide where exactly to cut the cable during 1st shot. This pushes the 6 stone + 2 glass elevator parts in gravity field, igniting TNT. Outcome is unpredictable and highly dependent on crumble factor. Scores vary between less and 90k to at least 108k. There are a lot of potential extra points if debris destroy crane parts, but it is not obvious on how to proceed.