Hey all, this is Chris Dunagan, creator of the OBUTTO gaming cockpit. Just wanted to pop in, say hi, and offer to field any questions you may have regarding our cockpit.
As far as flight controller mounts are concerned, the best way to attach the stick & throttle is with heavy duty Velcro or heavy duty double sided tape.
Re the size of the flight stick mount's top, it needed to be made this size since it would get in the way of your legs if made any larger, and I didn't want the 2mm thick sheetmetal edges near the inside of peoples legs. I've spent more than 6 months playing IL-2 with a velcro attached X-52 between my legs and have had no probs at all. Just to clarify, you do not have to slot the mount all the way down in it's mounting post, so it is height adjustable and you just secure it with the plastic knob. The best placement IMHO is high enough so the base of the stick clears the top of your legs.
Re monitor sizes....one thing to keep in mind is the monitor mount is quite close to the player. As Doug found out, as well as Magnum, larger TV's sometimes have clearance issues with the yoke/steering wheel mount. I personally cannot sit so close to such a large TV/monitor and opted for a triple monitor setup. Glad I did too since the triple setup really has a large impact on immersion with regards to any genre of game, but especially flight sims & racing sims, which is due to the angled side monitors. When sitting in a cockpit of a plane or race car you can actually get a sense of the speed just as you do in real life. Furthermore, the increased view is astonishing as you actually have side views out of the cockpit of your plane or car which in turn allows you to use your peripheral vision....very helpful when searching the skies for bogies or looking ahead to hit that next apex. At any rate, if you do run 32" or larger monitors the easiest fix is to just trim off some of the front portion of the yoke/steering wheel mounting plate, or bend it down....we have a few customers that have done this in the past.
Lastly, if you feel the seat may be a bit too low some of our customers build platforms to put their cockpits on. Some folks even put caster wheels on the bottom so they can slide their cockpits around the house ha! The reason behind the seat height was to make the cockpit not so obtrusive looking in a room, and since our cockpit has past many "wife tests" it was a great way to go.
Sorry for the long post, but I hope this clarifies a bit. I look forward to hangin around your great forums.