[commodor47]

I can only relate to our 2720 SL . . . yes, we can open up and use the TM without unhitching from the TV. However, you may not always end up perfectly level. Our last outing was a seven day stay in Milan, OH. I hitched up (but did not set the WDH bars) the TV the evening before our travel day which saves a little time when attempting an early departure.