Equipment Trailers

Looking at getting a new gooseneck and wondering what type of ramps work best for loading a dozer. I will be using it for other things too, but would like opinions on what is the best for loading steel tracked equipment. The pics below are what I have to choose from. The hydraulic dove tail is not allot more and has a 15 degree loading angle, can't find specs on the flip up ramps. Thanks in advance for any other suggestions.

Equipment Trailers