Request for Lock feature for custom brush sizes in Brush Settings Panel

I've created 14 custom brushes for spider hairs. The ideal size for these brushes on the section I'm filling in right now is 175px. (but it will change as I go). Every time I use "<" or ">" to cycle to a new spider hair brush, it defaults back to the 1935 px size, and I have to manually shrink it back down to 175. I want the ability to lock the size of the brushes/brush set like we already have on other setting types in the brush settings window. This way it will vary the size, according to my size jitter % setting, using 175 px as its base, as I cycle through my 14 custom brushes. (visual reinforcement below)