Hey mate, if you turn the gas/flame down to minimum (which is particularly easy on this lighter by using the slider & is also advised practice in the user manual when the lighter is not in use), it may not be locked but it will no longer ignite if accidentally fired - which may help in your situation & put your mind at rest when stowing it for travel. Although it sounds like you would still need a bigger bag.
I am loving my Ronx so far, though only had it a couple of days. It feels reassuringly solid and good quality/value for the money although long-term use will be the true test. With regards to size, it's actually smaller than I realised it would be as I have another 'kitchen torch' which is much larger (too big to use with the Anvil) so the relatively compact footprint of the Ronx was a nice surprise. And there's no doubt it has upped my Anvil game - I'm getting quicker, thicker, rips as & when I want them, but still not 'riding the line' (although now, by choice) which is just a little futher than I want to go.
As I wrote this I ordered another Ronx as a backup or just to keep in another room so hope they last!