Oh, I'm gonna share my tent mods to my AC Infinty 2x4x72". I noticed last grow when the vent system is on, the back of the tent and front of the tent sucks in about 4" on each side. So total loss of horizontal grow space is about 8" when the vent system is on a 3. So, pulling a McGyver, I used 4 straps that were not in use (2×2) and put them up to prevent them from being sucked in. 8" is a lot to lose when your plants grow like these. You can see in the pics the strap stopping the door from caving in...
Also, the brackets on the Evo 3. They cause the light to hang low. Lose another 5" just by using the stock bracket. So I used the roll of zip ties that came with the tent. Fed them through the holes on the light and wrapped them around the top bar. Now as the plants stretch, all I got to do is twist them tighter to pull the light closer to the vent system, eliminating the need for the brackets. I left the brackets on cause when seedlings even on 10 the light needs to be lower. See pics. Forgive my dust jacket, it will get changed when I flip next week. I double checked heat output of the driver to see if it would compromise the fan motor and electronics, and minimal change. Not enough to be concerned about.
Another thing, below the window needs to be a little loop of strapping to sick your finger in to pull it out twards you to see seedlings or small plants. You have to use your fingernail on the seam to pull the window towards you so you can see that far down. Or a second window at the midway point on the tent. If using the stock light that came with it (S22 ?) if the light is below the top window, you can't see down because it's solid, not a bar light. You HAVE to open the tent up. In my world, big no no. I only open to water and that's it. Using the Evo 3 its not a big deal, but the stock light you cant see through it. The board prevents that.
Just my 2 cents. Forgive me AC Infinity. Not dogging on your stuff. I use it all, but that tent needs to be a little more user friendly. If it were me, I'd make some slight changes to improve an already great product. Maybe a bar across the midway point on the front and back to prevent the tent from sucking in on itself. Make the one in the front removable.