That's another way, just that if the button was stuck on, it would go to last mode? I really dunno what is better. I think the quick click to hold might not be so easily reproduced in a pocket or bag. I know my F6 had gone on in my pocket sometimes when I forget to lock it out.
You know that F6 is simply an awesome light! I got the Convoy (2nd version) and drilled a hole in an indent next to the switch and mounted a light pipe (tube) in there now. Works really well - on the nightstand it's a clear low green glow - bout perfect. Didn't know the light is the exact match/copy of the Sunwayman C15A (https://budgetlightforum.com/t/-/18681), just the C15A is a small tube for an AA/14500 cell. The C15A's switch looks better. Actually I might buy one from ILLUMN if I can get a good deal - they've been great before. He's got them marked down to $33 now (illumn.com/sunwayman-c15a), hoping the F6 driver will fit, and swap the LED. I have a T5-5D3 LED in my F6 and it's just a perfect milky white, at least to these ol eyes. I want to add a 2nd light pipe towards the rear, in another indent - it would be closer to the color LED's and should be even brighter. This light works so well with a SANYO GA cell - not as quickly burning hot as with a higher amp cell.