I've been woodsballing heavily for six months now but bought an eGrip shortly after I got my first marker, an A5. The WAS was difficult to use and I had trouble sometimes getting it to work at all. The light would just flash and no matter what I did, I couldn't get into programming mode without taking out the battery and resetting it. It was just a big hassle. I wasn't happy about laying down $80 for a new board but it was worth every penny. The modes (semi-, 3SB, auto, etc.) are simple, easy to use and change. Just poke the button with a stick if you have nothing else handy and you're in the next mode. I generally just leave mine on 3-shot burst and pump the trigger for a rope of paint and I haven't even installed my Vortex or bought a QEV yet (and don't like double triggers). It probably won't ever beat a high-end marker, but that's not why I bought an A5. For woodsball and scenario types, the Rampage is also waterproof so you can play on through the rain with no worries (it works). I kept the WAS and put it on a grip frame with a drop to use for tourney fields, but I seldom use it. Maybe I'm just too stupid to remember how to change a WAS on the field, but the Rampage is much simpler to use and hasn't failed me yet.
If you have an A-5 you have to have an eGrip and if you have an eGrip you have to have the Rampage board. I give it a 9 due to the cost, but if you can find it cheaper, consider it a 10 IMHO.