Looking further into MBP cooling I found that most laptop coolers are made for your 'typical' PC laptop which has openings for the fans uptake/exhaust on the bottom of the laptop and work 'mostly' by assisting those fans via the coolers fans. As you all know, the MBP's only have an exhaust along the back hingeline. Laptop coolers with fans wil then only help to cool the bottom of a MBP not assist it's fans with cooling.
Therefore if you buy a laptop cooler it's fans need to be situated at the bottom back half toward the hinge line where most of the heat is produced. Ideally a laptop cooler that perhaps cooled that back half of the MBP 'and' assisted with it's exhaust along the hingeline would be best. Which one would do that I dont know.
Question, if the MBP's exhaust is in the back, where are the air inlet(s)? Are they through the keyboard or speaker openings? The reason I ask is because I, as many people are now doing, use my laptop as a replacement for my desktop and while doing so I have it connected to an external monitor so the laptop is closed while it's running. That may not be a good idea depending on where the air 'inlets' are located. I may be affectively 'choking' off the fresh air supply!