Hello Tony,
There is more training info on this Forum, search (Nikolaesky) if that doesn't give you enough, send me a Private E-mail with your E-mail address and I'll send you a short training video I made to help out another Forum member.
All breeds of pigeons can be trained to fly Portable, even Show birds.
I've flown a Kit of little white Figurita's, and had a lot of fun with them.
If your serious about flying Portable you should stick with the Performance Flying breeds.
The breeds I enjoy flying the most from a Portable; Doneks, Greek Nose Divers (Wutas), Vienna HF, Hungarian HF, Polish Orliks, Fireball Rollers, Kelebeks, Dewlaps, Ukrainian Skycutters, Egyptian Swifts, and Iraqi Tumblers (Zingees).
I'd really love to fly some Iraqi Basrawi Rollers (Portable), if anyone out there knows of any for a reasonably price, $50.00 to $75.00 a pair.
Last time I tried to get some Basrawi's the person sent me the Zingees, which flip/tumble, they are good birds, but not the ones I asked for.
Robert