Round tube are not a problem. Most of my drones use round tubes and none are glued.
The only thing to be aware of is that the motors might not be level with each other and that causes problems. But apart from that it’s not a problem.
If your unsure of the logs. Ask the community. You want to makes sure vibrations are not a problem.
GPS and Compass are working well…this I always ask about as I can never read the logs for this sort of thing.
Things like the tune are easy enough to use with the new graphing tools.
https://plot.dron.ee
https://plot.ardupilot.org/#/
The best piece of advice I Can give you is leverage the forum these guys are AWESOME