Does anyone use a convertor band to allow a braze on front mech to be used on standard seat tube like this RSP Braze on Front Mech Clamp

Is it a neat solution that will save me having to buy a new front mech or will it make it more fiddly to set up?

I have done in the past. Once the mech is attached to the adapter it’s no different to a standard band on mech

they’re fine – assuming your seat tube is round and you can get the right size