I have my P3P controller left over from when I lost my P3P in a lake. I just bought a new P4 and also purchased the MaxxUAV kit for it. I got to thinking it would be nice to have one normal controller for close flights and mod the other controller for long range flights. I am pretty sure the P3P controller will also work with the P4. I am not sure if there are any real differences in the controllers where it would make sense to mod one vs the other. I am leaning toward modding the P3P controller and keeping the P4 stock in case I ever want to sell it, but am not sure if I am losing anything by doing that. Anyone have some advice on this? Thanks.