as above, my suggestion of buys is as follows:
- G20 3WD which you should use as a driver too
- G20 hybrid to fill the distance gap between 3WD and 3 iron
Alternatively, if that's too expensive (but still much cheaper that even a single driver!) or if the meter is too fast / have problems with dinging, get L47 Rapture 3WD and hybrid.
Throw out the starter wood & hybrid and sell the Lynx driver - these would be useless with the above mentioned.
Then get a Tour W 56° (L41+) wedge to fill the gap between your PW and SW.
The problem with the wedges is that they all have fast meter, so it may be hard to play with starter balls, but if only 1 wedge it's anyway better than having such a huge gap...
That's probably enough until you reach the Master tier...
Edit: to be clear, if you're short on credits, it makes little sense to buy ANY driver before you reach the master level...
Edit2: seems I'm too late - I think it was a big mistake to buy that Rocketballz low level driver. G20 3WD would be better than it AND cheaper... Anyway, now probably the only thing left to do (if still have credits) is to get the 90 yd wedge...