A-5 or ION

you already have a 98 custom, with r/t.. I'd go with the ion so you have a faster marker if you want to play speedball. The a5 and 98 custom are basically the same execpt for the cyclone, so why not switch it up a bit? that way you'll have 2 guns for 2 diff types of playing, or diff moods. go with the ion.

well..... i hav an a5, and ive uses my freinds ion, its a great gun; it really is,
but... it eats up air really fast, its hard to change options on the board, and
its not reliable. i only have an a5 right now, but if i were to get a new gun, id
get an ion. but now, an a5 egrip can shoot 30bps and it comes with a
cyclone loader. its very reliable ad will never break. i suggest an a5. its not
as flarey as the ion, and is a little more expensive, but the ion in my opinion
is just something fun that can shoot fast. get the a5, its worth it
(also the range on the ion is horrible!)

You didnt make a good argument either. Range, efficiency and the
expense arguments are flawed.

I would say A5 over ion but now i would get an SP-1 over A5 

^^^ Because some people don't realize that the original poster has probably already made and acted upon his marker decision at some point in the two years since he originally started this thread.