You'll have to figure out if the jacks are long enough. How much extra length is available when they are all the way down?
You can also get longer jacks or just use a some blocks every time.
Personally I have never heard of any handling issues from raising a trailer. Your step may be a bit farther and you may need to bring something to make up the difference.
Keep in mind you can raise it a bit by using shorter shackles and/or sometimes there is another, lower hole to move the equalizers to. I lifted mine about 2" using those methods.
You may even be able to get a taller equalizer.