How does the trailer affect your driving???

[Creator Mat]

When we finally started to drive our robot around i thought hey we were going to be pretty fast, and mobile. I give my self a pat on the back here (i am head of power train design). but then we attach the trailer. We seem to be a lot slower, this was expected to some degree (pulling 40 pounds around tends to do that) . but the thing that has me worried is while we can make really sharp turns it is really slow and normal wide turns are hard to use when aiming. i just want to know is this common with other bots or is it just us???

we have a 4 wheel independent tank style drive train with traction control.