seadoo speedster,tall, heavy riders, very small wake. HL Landlock? or something else

I understand that my boat does not produce a quality wake or even much of a wake at all.(1996 speedster) And I have seen people get up behind smaller jet boats, with that said I still want to surf behind it whether its in the wake or farther out. I I'm looking to cruise and maybe do some small tricks.
Also I generally have heavier and taller riders with me and I'm the only one who has even tried wakesurfing . So small wake, newbies that are heavy and tall. I was going to order the hyperlite landlock or hyperlite broadcast 5'6 because my budget is 300 $. I was wondering if anyone else has any input on what board would be good or any other info that would be helpful.