Yes I can try.
1515/1.5Y 1500kv : more inductance so more controllability than the higher Kv 1515/1Y (perfect for 1:8 racing buggies 5-6S).
1518/1.5Y 1200Kv: same for 1:8 racing truggies
1520/1.5Y ~1050Kv : same for 1:8 racing truggies
1524/1.5Y or 1Y : 6x6x6 Monster Trucks or heavy crawler
1717/1.5Y ~1050Kv : XXXXL Monster trucks on 6S ?