Hey SJN,

As you know I have a sprint and a brushless setup just like that, I toy'd with fitting the brushless in mine but after testing it with a 400 6v I decided against it, here are my reasons:

1) The brushless ESC is about 2/3rds of the size of the motor and it was going to be a squeeze to fit it and still be able to remove/replace the battery pack

2) The brushless gets hot and as I'd already fitted a switch in the rear I had nowhere to fit a cooling inlet.

3) the motor mount is ideal for a 400, but is only fixed on the shaft with cyano, it's already twisted free once with just the power of the 400, If you fit the brushless it'll need reinforcing or it'll tear the driveline apart.

4) It was already crazy fast and as the hull barely touches the water I feared it would be damn near undrivable with all that power, which is why it's going in my Gecko instead

However I'd love to see one in action, keep me posted

Couple of tip's I picked up building mine, keep the sponson edge's and ride point's square, it doesn't mention it in the instructions but it really reduces friction.

Uncase the receiver if possible it already takes up a lot of valuable space, make an aluminium turn fin the plasticard one has too much flex

Enjoy, I love these things, micros are the future!