What's the best way to travel along with a squonk mod to avoid leaks etc.?
I pocket carry all the time. As long as I'm not wearing tight pants/shorts, it's not a problem.
In my opinion, it's no more leak prone than anything else. Actually, I've never had a leak in my pocket, etc. Just don't squonk and put it in your pocket without vaping some of the juice off.
Really, it all depends on your atty, wicking, and squonk frequency. As long as you don't leave a pool of juice in your atty, it's not going to leak on you.
Now, depending on the fire button on the mod, etc you may hit the fire button, but this is no different than any other mod.
When I pocket carry, the only thing in my pocket is my mod.
If you are flying, or going through the mountains driving, etc, I believe folks say sometimes the pressure changes can cause the bottle to pump into the atty. I don't think this is any different than an RTA or regular tank though.