Blah blah blah… SRAM performs better in nasty east coast type conditions.

Well, SRAM’s ESP design uses a 1:1 ratio. This means that for each millimeter of cable moved in the shifter, an equal millimeter will be moved in the derailleur. This allows a greater acceptance of off-road conditions (dirt, water, sand, etc.) and also gives SRAM a unique shifting technology. Conversely, Shimano uses a 1:2 ratio for its shifting systems. This means that for every one millimeter of movement in the cable there will be two millimeters of corresponding movement in the rear derailleur. The ratios are not the same; therefore, you cannot use an ESP shifter and a Shimano derailleur, or vice versa.

via SRAM

What does this explanation mean in real life applications? In short, it means that Shimano derailleurs shift as well as SRAM derailleurs UNTIL something interferes with the shifting process (sand, mud, dirt, water, crashes). Once that occurs Shimano derailleurs, because they move two millimeters for every millimeter of cable pulled, become ‘out-of-tune’ more quickly than the 1:1 based derailleurs offered by SRAM.

via Making It Easier

We have SRAM derailleurs and shifters on the Ibex Trophy so the reviews will be coming for those.