loosing or quitting ?

these are just my thoughts. i know some hogs will just flat out run! not trien step on any toes. these dogs with all that bottom do bay up hogs. but from what i have seen and hunted with, these dogs run one till it just cant go any further. do these dogs lack the grit to turn and make it stand and by up? do they live for the chase? and i realize the variables, thick brush ETC. it seems like everyone wants running bottom. the bottom i want is the kind that makes a dog stick with hog for hours bayed up till i get there. to me thats real bottom not given up till the hogs caught once it`s stopped and bayed. i may very well be in over my head on this one.