I've got both slide in and stand up ramps, I like the stand up ramps for equipment trailer, it is an equipment trailer, that needs the ramps everytime I use it. the spring loaded ramps are fast and easy.
They come off easily if needed, but I have never needed them off.
Don't see how ramps would interfere with using forks? unless you're talking about plopping a pallet on the tail of the trailer from the rear? Can't picture a scenario where that would be practical. I load and unload pallets from the sides, or drive right up the ramps with a pallet.
Another benifit to stand up/drop down ramps is mine have blocking built in so no need for jacks on the rear of the trailer. which is a big deal with any heavy load going onto the trailer.
My dump trailer has slide in ramps for when you need to use it for rolling equipment, That's great, they are out of the way and unused most of the time I use that trailer.
Stowed ramps are a royal PITA IMO, anyone who says other wise, makes me wonder?? I think it all about the looks.
If I was hauling a show car I would not want stand up ramps, wouldn't look to sporty at a show.
I've never seen contractors with skid steers on anything but tilt trailer or one with stand up ramps, maybe some week end warriors, but not someone doing it on a regular basis.
JB