why cant popups have bulldog jacks? everyone serms to use Anderson, BAL, or blocks of wood. i have Bulldog jacks on my cargo/ kitchen trailer & no matter how lumpy the ground, i get accurate level & 5 solid feet touching the ground, & it doesnt move — at all. i still want bulldogs jacks, especially if i get new axle & do the lift up. why CANT i have the circle mounts welded to the frame? would i have to reinforce the frame to do this? tell me why its a bad idea.