Resuggestion, thanks to Blaze for the info!

Sale 1:

https://backpack.tf/profiles/76561198079955710#!/compare/1543190400/1543449600

https://backpack.tf/profiles/76561198079821428#!/compare/1543104000/1543190400

Sold for CPS Phantom(28) + ~4 keys in sweets

Total is 32 keys

Sale 2:

https://backpack.tf/profiles/76561198079821428#!/compare/1544054400/1544140800

https://backpack.tf/profiles/76561198170165054#!/compare/1544054400/1544140800

Sold for HG Physician + ~3 keys in sweets

Use there.

Sale 3:

https://backpack.tf/profiles/76561198170165054#!/compare/1544313600/1544486400

https://backpack.tf/profiles/76561198021055079#!/compare/1544400000/1544486400

Sold for KaW Chieftain

Cheiftan Mini:

https://backpack.tf/suggestion/5c4824cb44325a16086e83d4

Suggestion for 21.5 keys

Sale 4:

https://marketplace.tf/items/319;5;u68

Sold for 60 USD

Keys at 1.84 USD

Total is 32.61 keys

Total sales @:

21.5, 32, 32.61 keys

Doesn't seem right to drop a hat massively when it can sell for 32 pure,

Seller at 30 keys,

Blaze's Part:

given the seller at 30 is still there (unsold for 2 months now) it's probably best to wait for more sales here and leave this outdated for now. another possible solution could be going for a larger range: 22-32 keys

Taking that.