Even after using the Race Ramps numerous times, we often have to adjust the left/right angle of one or both of the Race Ramps. You want a positive, full placement for both wheels, so even a few degrees adjustment of the Race Ramps is prudent.
So if after evaluating your trajectory adjustment is needed, then let the car coast down off the Race Ramps, and return to the "back" of the ramps and adjust one or both as necessary.
Note: you'd have to be pulling up the Race Ramps at an inadvisable speed to roll over the lips at the top. Slowly but surely is the way to do it.
Of course, should you need full access to both ends of the car, then after you've concluded with the front or rear just move the Race Ramps to the opposite end and repeat.
The straps at the end of the Race Ramps are ultra convenient for carrying around, and the ramps are surprisingly light weight. Whatever you imagine they weigh, they're probably about 25% of that. Seriously, your grandmother could carry them without issue...
Sturdy, light weight, convenient -- Race Ramps get 5 stars from us. No garage is complete without them!