try the speedmind case. I run a helios with the 2.4 module. I do not like to remove it very often. biggest problem is the pins on the radio. you get it wrong and you break the solder joints loose on teh board. the speedmind case, you have to mod it a little for the antenna of the module. but other then that it fits with the drop wheel also. i have the wheel all the way out and it still fits the case