For me it was a challenge to frame first and then secure the pod. Somewhat after twisting and turning the pod legs, the frame will be shifted again. That's why to end the frustration, I got a ball head.
A g-pod is not a true tripod, so you can expect some reframing with or without the ball head, though ball head give you better control. Be aware of the total weight of your setup - including the ball head.
On the subject of buying a pod, take note that there are 2 versions - the original (ard $89) and the OEM (probably cost half of that). Both look and feel the same (from same factory leh!), but I wouldn't be able to comment on the respective realiability after long usage...I suspect the ball joints may become loose one day. Suggest that you can check these out at OP of SLS for a try.
btw, I got mine at a steal from eBay at $15 (OEM version). Don't ask me how 'cos my friend bought it for me.
Cheers!