As long as the 3rd party works ok!!!:bang:I've never owned a genuine battery grip, and there's no need to.
PistolPeteUK said:I got a Mieke grip with my 7D.
Never used a geniune grip so I have nothing to compare it to but the only 2 gripes I have is:
A) I seems to no be able to display the correct battery code in the correct slot, it often just shows the same code and same battery level for both slots
B) You have to very firmly push the batteries in as they don't always make 100% contact.