Hello all i just got my new TT and have a question about the spring bars i am using. My TW is rated around 850lbs and i am using the WD hitch i had on my old trailer. The spring bars from my old trailer say 600 lbs and my new trailer is max 850 + - the dealer said they would be fine but i never take that for gospel. i am thinking on ordering 1200lb spring bars. Any thoughts on this. thanks..