Hi to everyoneI have a question which was not answered in the tutorial: How to determine my Initial cruise altirude based on my weight?I know Boeing hasn't provided the tables with all the figures like for the -400, but how do you guys do it?Thank you in advance

There's an entire chapter devoted to this topic in the manuals that came with the aircraft. The manuals are an indispensable resource, and you paid for them, so you might as well read them. By the way, you're only allowed one signature graphic per the forum rules.