Why is Liquify Brush Size so Out of Proportion?

Question

When I choose the Liquify option from the Filter menu, the Liquify tool opens and I have access to the custom set of Liquify tools. Unlike almost any other tool where you select a brush size, the Liquify tool requires you to modify the position of a slider rather than selecting the brush size dynamically by right-clicking.
The problem is that the brush size selector control goes from 0 to 15,000px diameter. In order to make effective use of a 15,000 pixel liquify push tool, you'd have to have a really large image. Perhaps there is a case where someone at some time used a 15,000 px diameter nudge brush in the Liquify tool, but in my nearly 20 years of using Photoshop, I have never come across the need for a brush that large.
Regardless, because the selector uses a linear scale, it is really difficult to select a small brush size (say less than 100px) without manually incrementing the slider.
I would really like to see Adobe standardize the tool size/preset selector so that it is always available via the context menu (or equivalent) and that an option exists to enable relative slider values or percentage slider values in incremental selectors like brush size. Percentages could be setup where 100% was the largest side of the current image and then brush sizes could be selected via percentage of your image (of course converting to pixels, but the scale would be percentage-based). Even an exponential scale that favored the smaller values would be helpful. Or perhaps, movable caps that would allow you to set your own Max and Min values....that would rock.
Are there are any plugins that solve this problem? Anybody have any advice on how I might be able to select more appropriately scaled brushes in the Liquify tool when I am working with images where a 15,000 pixel brush head is unreasonable.
Any input would be greatl appreciated. 
Jase                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

Answer 1

R_Kelly, thanks for the reply.
The problem isn't that there aren't enough ways to change the size fo the cursor, it's the relative scale of the cursor. I have two 37" Dell Ultra monitors on my desktop and to use the Alt-Right click method of resizing the brush (even on a 7500 pixel wide document at 300 dpi), I have to drag from one side of my dual monitor setup across 60 inches (whatever the horizontal width of a 37" monitor x2) about 50 times to get the brush to a size that I can actually see the outline of it.
Then, once I can see the outline of the Nudge Tool (in the Liquify tools), if I drag about 3 pixels, the visible outline of the brush wildly jumps from full-screen to tiny. It's because the scale of the brush size selector is a mess. 95% of the sizes in the selector are bigger than the piece that I am working on. Does that make sense? Why would you be able to select a tool size bigger than your document? Furthermore why would you want 95% of the available tool sizes to be unusable? It doesn't make any sense at all.
Thanks for the short reminder on brush size manipulation in general. I was surprised to see it work in the Liquify tool--though it didn't solve the issue.
Best wishes,
Jase