Tippman 98c with response Trigger and cyclone feed system - Not really comparable.
Spyder Electra 05 w/rocking trigger - Easier to achieve higher ROF, but much louder and much more kick than the ION.
CP Roller Trigger
Freak insert Kit
NitroDuck 45/4500 HPA
Eggy w/ y-board
New Trigger and a QEV are musts
Nitro is a must
Need to be delicate when taking apart
I'm still pretty new to the sport, but after a couple of months of playing with my Tippmann, I wanted something more so I set out to research as much as possible and ended up with the ION Pro. My originaly plan was to buy the ION, but with a couple of hundred dollars worth of ups for only about $50-60 more, I thought the Pro was a no brainer.
I've now played twice using the ION Pro as well as put a couple of cases of paint through it while practicing and here's what I like:
With the freak barrel and insert kit, I'm able to match of my paint to the appropriate bore size which helps with the accuracy.
Although I've had a couple of barrel breaks, I've had zero chops after about 4 cases of paint, ranging from wal-mart swirls to x-ball gold and nelson anarchy. The eyes are awesome in that regard.
Its much quieter than all the blowbacks my buddies use and has very little kick at all.
With the QEV installed, which is an extremely inexpensive up, I'm able to drop the dwell which helps with speed and gas efficiency.
With my NitroDuck carbon fiber tank, it is extremely light.
With the CP roller trigger installed and tweaked its pretty easy to walk the trigger. Even for a newbie like myself. As a matter of fact, even though I was on semi mode, some of they guys I played with thought I was on full-auto mode.
Despite all the positives, there are a few negatives that I need to report as well, including:
Leaks - The possibility for air leaks is pretty high and there are a number of places that the leaks can occur. However, there is a lot of good info on the forum sticky's.
Stock Board - For a newbie, the instructions on setting the dwell and ROF and optimal settings are explained well. Also, its a little bit of a pain to have to remove the grips in order to change settings.
For anyone looking to get into an affordable electro-pneumatic, I would strongly recommend this marker. Despite other reviews, I did not once feel like the marker was a toy or cheaply made. Its as fast as anyone really needs. Its efficient and quiet. Its very accurate with decent paint and the rest of the inserts. The leaks are pretty easy to fix. Even though I was a little intimidated at first, considering how different this was compared to my 98c, I'm very happy with the money spent and have recommended it to all of my friends, even though that may come back to haunt me when we play against each other.