Hey BB
it wasn't a proper scalp, I just mowed a little too low and it happened to scalp. I didn't want to have multiple levels so I just kept going. I did hit it with some ammonium nitrate and a decent 90 minute soak straight after and followed up with another a really strong kelp and seaweed solution and another 90 minutes of water 3 days later to try and get it to bounce back as quick as possible. I normally use the kelp and seaweed weekly anyway (I purposely had it made up as a weekly applicator anyway but this time there was a double application).
The front lawn is actually recovering better than I expected. I've been giving it 10 minutes of water on dusk every night and when it's forecast for 35+ I've been giving it an extra 15 minutes at about 8:45am. Even though it's getting better, I will be killing it off in march and reseeding with Tyee Bentgrass. It is a new generation Bent and much more heat resistant. I does have a tendency to produce more thatch than the current Penncross in the first 12 months but after that results show that from about 18months onwards, thatch levels are almist identical.