I found a bug with the editor (that resulted in incorrect talisman requirements in the level) while making the intended solution replays for Athletic Rescue Operation, so now the version number for that level's reached double digits! I also noticed when I went through the thread to delete the v9 post that the v5 post somehow survived. Oops.
I'm not aware of any backroutes for Tunnel Project so that level's been comparatively simple to deal with. There actually is a v2 of the level, but I've chosen not to push the update, since it's just a style consistency change for when I put it in a level pack later, as that pack will not be using variable spawn interval or time limits. v1 is compliant with no time limits, since that's default, but the level was made shortly before I made the decision that the pack would not be featuring variable spawn interval at all (I'd already chosen not to use it for puzzles); thus, the spawn interval is not locked. All v2 did was lock the spawn interval, and I didn't want to push a contest update for that.
Anyway, here's the replays.
The talisman replay for Athletic Rescue Operation gets both talismans, but since Optimization Lv. 1 is to save one of the two optional bashers (provided for the player's convenience), and Optimization Lv. 2 is to save both optional bashers, the two optimzations featured in the replay can be applied independently of each other for two different ways to obtain Optimization Lv. 1.