Greg doesnt like the Q any more since he went to the 240
The Q is a reliable car, and the 94 is a great overall choice. 9093 have the guide issues like on the KAs, unfortunately theres no warning.. The 9093 however is a little faster.. Once everything is up to snuff, all year Q should be similar to maintain which is going to be like maintainng 2 240s..
http://nicoclub.com/articles/q45buyingadvice.shtml
Start there.....
I have Z brakes on my Q .. The 240 conversion lines work perfectly..
Bottom line, is you need to drive a good one and see how you like it... My gut feeling is that youll probably go back to your 240......