i use still the spyder em1 and it is a great gun i have a teardrop barrel on it a awsome J&J drop forward a brand new gas thru foregrip dye sticky grips and all i use is draxxus midnight paintball they are the bomb.
deffinately get a new barrel a drop forward and it only runs on compressed air or nitrogen.
This gun has good accuracy, shoots hard, low price compared to anything like it
It needs many upgrades and it only runs on nitrogen and nitro tanks are expensive
This is a great gun for an experienced player i have been using it for a while and i love it to death as long as you take care of it, it will take care of you. If you have one and you are looking to upgrade it get a barrel and a drop forward to balance out the weight of the gun.
I would reccomend this marker because i have used it for so long and it still works like i just bought it.