Except for some with large powerful TVs, most on this forum tow using a WDH (Weight Distributing Hitch). Like Neil and Susan above, I would not want to tow without one. The WDH will solve your tongue weight problem since it reduces the downward load at the hitch ball and increases the download at the TV front axle (good for steering control) and at the TM axle (so watch the axle weight, too). It should however be adjusted properly - instructions should come with the hitch and you can find more info on this forum here:
http://www.trailmanorowners.com/foru...ead.php?t=2616
Some vehicle manufacturers have been known to not recommended use of a WDH, but this is usually because they are worried about misadjustment.
I use a Reese trunnion type WDH with 800lb bars and can recommend it.
-Paul