@Icho: Definitely a backroute. The intended solution has at most one basher left over (one of them's only there to reduce execution difficulty but with optimal skill assignments there is a chance it may not be required). Furthermore, there shouldn't be any excess cloners to burn off at the end.
@JRT: I may have missed yours when checking replays for v4; I remember downloading two, and both replays I watched were essentially the same solution, so it's possible I may have accidentally loaded the same one twice instead of watching both. Also, you managed to use a precise basher placement to save one, though since you didn't use the basher you saved somewhere else it didn't really end up mattering.
