a lot of these boats dont have reverse.....you can find the amp rating for the esc of the boat and then switch it out with an esc with the same amp rating, only with reverse.....

the double engine boats you talk about, do they use "vector steering" and no rudder??

if they do, they arent worth buying...i would save up and get a traxxxas blast or a shockwave 26 or maybe even a super vee...they are higher quality and worth every penny