I hate having to admit defeat, but this time I'm left scratching my head. I've got a heavy payload, more or less the core structure of a space station that I'm trying to get into orbit. The lifter tends to break apart in odd ways each time and despite my best efforts I can't alter it enough to prevent it from randomly happening during ascent. Here's the contraption, with gratuitous use of struts to keep it from wobbling. I use a set of 2x2 panels as a pusher plate to keep the engines from causing any problems with the top half (the station itself). It's got a total of 5750 Delta-V and it uses asparagus staging to drop the orange tanks in sets of 4 as it lifts. I'm normally not a fan of asparagus staging but to get something this heavy into orbit I don't seem to have much of a choice. Any idea why this thing breaks apart seemingly at random, and what might I do to get this beast into orbit safely? I've attempted a total of 25 launches now of which only 2 succeeded, but then ran into design problems that caused me to abandon them and launch another.