Yep. When I received mine (in crate form), the thing wouldn't go straight when both handles were all the way forward. That was with the handle adjustments (from above) to be all the way out front. There is a double nut "stop" on each side of mine that can be adjusted from above. However, even with the "stop" adjusted all the way down, mine still wouldn't go straight. I had to get underneath and adjust at the heim joints. No big deal really.
Are you annoyed at all with your deck cutting out when you are in reverse? If so, let me know...I "fixed" mine...