Nobody has slagged the Tamiya apple more then me, but I learned the inherent flaws actually enhance game play, extend battle time, and create opportunities to build a skill set that once mastered, give you a leg up on the competition.

Apples that don't have this are at a disadvantage on the battlefield. In order for all these IR system to function together on a level playing field you need to have a certain commom denominator. The Tamiya apple is that, and if systems designed would make use of the simple pin arrangment then the Tamiya apple could be used by all systems which would lead to better interconnectivety between all systems, which IMO is essential, otherwise you will end up with islands of users of different sytems that do not play well together fragmenting an already small hobby.

That is why.