Combo arrow shooter /pellet gun

Trying to decide if I want a arrow only gun or a combo . How much trouble is that switching of barrels / re-sighting etc ? I have a will piatt tuned shin sung 9mm I thought about trying the 357 arrows but none in stock anywhere, so was leaning towards the pioneer air bow till I saw the fx Dreamline and crown offers arrow barrels . Thanks in advance 
 
I cannot speak for the FX Or Shin Sung but I can with the Pioneer, It produces a lot of power and accuracy. Its whole engineering has went into doing one thing very well any other double platform may do well doing two different things I do not see it matching the performance of the Airbow 
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This was a 40 yard shot through 4 ply fiberglass plus the metal rail and rubber bumper I nailed it right where I aimed
 
Which arrow shooters use full size arrows at velocities above the best compounds? Don’t want anything with the crossbow size bolts or special O-rings around the shafts or lower power.

None, at least not in the power you are looking for, What is the issue with the Crossbolts?

There is a reason for this think about a longer stick its easier to break right, now cut that stick in half and try to break it 

The shorter staffs stiffens up the spine so that it can handle the power that is being applied to it and to reduce the resonance of the shaft in flight increasing its accuracy