Hey Ivan, recent Pro upgrade as well. I bit the bullet and just went straight for the Higher Speed, it does take a few rounds to get used to, and if you arent careful a few shots can get away from you(ohhh and that lag monster can cause a nasty shank)
From an upgrade stand point though.I bought the Pro Tier Burner Set, I like the idea of having a higher end spin control and better precision I find sitting my shots closer to the pin because I am terrible at putting much more needed.
You could easily make a case for higher forgiveness though, PING Rapture Pro V2 is considerably slower, but really lacks the precision and spin control I believe you would want if you were looking to save a bit of cash by purchasing a complete set.
If you are looking to save money in the long run. I would suggest doing what I did.
Pro Tier Burner Set 25$(Sooner or later if I ever hit Master I really only need to upgrade my Driver Immediately, I don't think the Irons will massively justify an immediate upgrade.
Redwood Putter 6$
64 Z Satin 2.5$? every time I hit this from a fairway to a green, I am within 6 feet, normally within 3. Possibly the best club in the game. Remove Hybrid from the bag.
Came out to 35$ roughly? I put some extra credits for when I finally decide to play a R2G and buy some cheap balls.