I had an Angel with Angel Air,it was small,light and fairly accurate.Ive changed over to a Freak Factory Impulse Vision with a voodoo low rise,voodoo full flow valve,delrin bolt,Blade trigger and lots of shiny add on bits.After 4 months use,the vision eye died on me.That wasnt a problem as Ross from Smart Parts europe fitted a new one at the Max Masters,(thanks Ross).I have noticed that the Impulse is faster than an Angel,and definitley more accurate,my opinion.The best thing about an Impulse is you get a Max-Flow system as standard,which knocks the price down.You dont get any air system with the Angel,(as you already know!),that tends to make the Angel too expensive.The other thing with the Angel is all the gadgets on the Lcd display,I cant say I ever needed them,so they werent worth the exta cost for me.Given the choice,id say buy an Impulse........