Since the implementation of IPCVal we have 3 different implementations of PrivVal.

For TCPVal we have a config flag that overrides the privValidator that is passed to the node constructor:

On the one hand this might cause confusions for people implementing an App on Tendermint as you would not expect that the privValidator you are passing could be overwritten and on the other hand this implementation makes it harder or at least ugly to implement the third (IPCVal) and potentially even more implementations.

The questions are:

• Do we want to leave the choice of the PrivVal implementation to the App built on tendermint and use the passed PV ?
• If not how can we beautifully implement the third interface IPCVal ?