Yeah, you are proabably right Matt. I will have to look into it that way then.
Thanks Jason, Ill keep an eye on that also. Im only 10 mins from southport anyway so might work out anyway.
Off topic thought, maybe i could just 'beef up' the 1600 ones ive got with the gusset and sliding a larger diameter tube over the 2" size of the 1600? Unless there are other things that are different apart from the tube diameter?