There are occasions when I want the clip in front of the light. And only the head pokes out.
E.g. I want to wear it in the front pocket of a light shirt. When the clip is on the back the light looks downward. On the front it has more suspension.
If the distance of notch1 and notch2 is as big as the head diameter a) you can make a deep carry clip too.
I use a H03 as my winter EDC and I don’t carry the headband with me.
When I need a hands free light for few minutes I clip it in front of my collar. That is mostly enough with a floddy light although it is looking down.
I have contacted Olight in the past and ordered just the clips. About $5 a piece if I remember correctly. Didn’t find them on their site so I just emailed them and they took my info and shipped them. Might try that if you know which ones you want. This was a while back so not sure if they still do that.