Using the QGIS Processing framework, I have a set of points that I would like to buffer. I need apply different buffer radii to different ‘sets’ within my points, based on their name.

At a high level, the model is:
Input points > select > 3 x buffer operations based on different radii > merge the buffer polygons > dissolve > output

I’m trying to use the processing Vector Selection toool – ‘Select by attribute’ – with the following settings:

The desired outcome is that only some points are selected for buffering. The current output is that all points are selected and buffered.

I’ve also tried the ‘Select by Expression’ tool using the expression left("ID,2), = 'BH' with no success.

I think my syntax is incorrect for the select tools. Anyone able to shine some light on this?

Actual values in the Point table include: