I use the Pa4x, Pa1000 and the Musikant styles in my Pa700 if a sound isnt presant in the Pa700 thats in the other models its usually substitued for another. 
Thank you,  I figured they would load, same as the pa900 was able to load pa3x styles.
Planning on uploading a few of my user styles I was working on last  year,  just in case any might be of use to  others, so handy to know , not totally limited to PA 4x