It's not real hard to use the gaffs on the wood poles ..... its a little harder to use them on the concrete poles you have to sorta jab them in harder and make sure you hit the same hole on the way back down.
Be sure to get a pair of suction cup adaptors for your Gaffs for the steel poles.
If you're seriously asking this question HERE you might wanna just stay on the ground or on the ladder.
My serious answer would be find a old linedawg willing to take on an apprentice and do what he does.... I just hope you can afford the bar tab.