Just finished building F-91 last week.  It is indeed impressive for Bandai to come out with this kit that it doesn't require any polycap for the joint.  However, because I too used to the polycap, I have to be extra careful with this kit, 'coz spraying at the joint means trouble.  Because it is completely polycap-less, therefore the joints are made tighter than the usual polycap joint.  Thus, because of this, I broke the right hand's joint, making it a handicapped F-91.  So I have no choice but to modify the joint a bit in order to stick the hand back.
Even thought so, I still have another F-91 kit awaiting me - F-91 custom colouring from Crossbone Gundam series.  I left with the outer layer of which I still hasn't started yet.
