As you can see http://www.zertuchegroup.com/ hasn't been updated since 2004 11 sep and zertuchegroup deceived people for money ( they took my preorder money for the gen). You should not believe them.
But as you say the gen isn't the fastest monster out there but it have an equal top speed to other trucks if those trucks are stock.
My gen is also a 3rd generation.
I think CEN has come along way since you had yours and hopefully improved their product and quality.
My lhs has a FG and yes they are impressive, but as you said they have their problems.
I'm glad that I bought a Gen and CEN is getting my money when they are releasing the pro kit of the matrix.
Still sorry for you and your friend
//Jadda