I tried to find the article that explained how pushing on the crankshaft thrust bearings (that is what your clutch does) will prevent proper oil flow. It will not instanly destroy your motor but over time will cause damage.
But by all means. Everybody should install what they find fit.
I for my part will stick with 1600 lb clamp load because its enough and it will neither damage the slave cylinder nor the crank bearings.
There is a reason why Downey only sells up to 1600 lbs . Also northwest off road does. Look here:
http://www.northwestoffroad.com/parts/centerforce1-2.htmlThey didnt put a large warning on there because they made the 1600 lbs tale up ... Downey also used to have a warning in their catalog.
But be my guest and install the 2500 lbs pressure plate if you wish.
Matt