2nd hand clubs & fitting – (relative) novice

[nowtfancy]

I’ve been playing the game for about a year now, don’t get to play too regularly, but a couple of times a month, with a couple of monthly range sessions & lessons.
I bought a cheap set of clubs from a discount sports shop originally just to see how into it I got – it didn’t take long to realise I was definitely into it! So am now looking to upgrade.
Have been to local golf shop – looking at a second hand set of irons (ping g2), and as I’m relatively tall I discussed this in the shop and they said we’ll be fitting them to you anyway – what I’m interested in finding out is 2 points!
1. Is there any advantage in getting fitted for clubs when your swing is still erratic? (improving thanks to lessons & all too infrequent practice! But still a bit erratic!)
2. Anything particular I should look for in 2nd hand clubs? I feel like I’m getting better value that way, but wary of wasting money that’s hard earned!

Thanks for any help/advice/comments
ps wasn’t sure if this should go in this section or in ask the experts so went for this one as top of page!

 

[USER1999]

Ping G2s are good clubs. If you are tall the shafts need to be the correct length, along with the lie angle. As an example, I am 6 2, and have 1/2" longer shafts, 2 degrees upright.

You also need to know if you need stiff or regular shafts.