Lightroom: Allow the Highlight, Shadows to go beyond -100/100 for HDR images

good idea, especially when cameras now have 15 stops dynamic range.

YES! My sliders are set to 100 a lot. I need more.

it may still go to +-100 but make the internal increments to double the effect. Also it should be for any raw image, not just HDRs

Good idea, but did you know you can already do this? Select the Adjustment Brush, set the brush size as large as you can and turn off Auto Mask. Simply paint the entire image with the brush. Now you effectively have an Adjustment layer, that gives you another +100 Shadows and -100 Highlights. You can do this as many times as you like.