I recently removed the 3 n 1 and replaced it with a GY240, 25A and 12A brushed ESCs.

A few months earlier I replaced the radio gear with DX7/DS285s/AR6100 and added ball links to the servo control horns.

For me it completely changed the feel of the copter and was well worth it for me. It is much smoother now and fun to mess with the programmable Tx features.

I have the bell/hiller parts waiting but it flys so well (light sport style) I'm not sure when I'll put it on.

Over time I sold ALL the stock electronics on Ebay and applied that to the cost of the "separates" components.

Too bad you can't buy the Axe without the "electricals".