I’ve got a page in my notebook that’s all about launch‑window tweaks, you know, the little time windows that shift the transfer angle. I don’t trust the phone’s timing app – it leaks cosmic focus – but if you shift the window by just a few minutes you can cut delta‑v, especially when you line up the resonances. I keep a watch on the solar flare schedule, too, because a burst can throw the whole engine off balance. So yes, I’ve tried it, and it’s worth the extra hour in the lab.