Coil on Ebay, 5 inch DD for MXT and DFX?

[49ersgold]

White's MXT DFX 5" Excelerator Coil Metal Detector Detech Double D DD | eBay

is this a good Coil?

 

[Sandman]

If there is only one coil that everyone should have besides the stock coil, it is the sniper coil to get between the trash and speed up recovery where you don't need a pinpointer.

 

[williamsingr]

You really dont need it you already have the 9.5, if anything go with the 10x6 DD.