Need some opinions on what to do next

[grgbulldog]

Well, after getting my mamba in my rc18t, I can't decide what to do next.
Would you guys go for a radio upgrade(maybe spektrum), or go lipo in it?

 

[abadk9420]

if the radio is working fine I would probably go for the lipo batteries...

 

[grgbulldog]

I've been getting a lot of interference lately. The signal also doesn't seem as strong