What happens sometimes with Tone's AutoTrans Interceptor Adjustable Electronic Shift Kit is that there's a faulty connection that causes the tranny to lose signal during shifts - it can happen if the connectors aren't completely together (they'll slide apart slightly causing a break in connectivity) or if the wires aren't tied down properly they can wear against the frame or exhaust - the exposed wire causes shorting that can also cause symptoms like you describe. I've heard about the first happening to some members in the past, and actually experienced the second - the zip tie I used to bind the module up broke, causing the module to swing freely - the wires melted against the exhausted and was causing rough shifts for me.

-- John