Similar racquets

 So, I had several racquets that are said to be similar even though not the same generation. They are as below:

- Dunlop Hot Melt 200G (early 2000s 320grams) are similar with Head Tour 630/280 (late 90s 330grams) or Head Pro Tour 2.0 (2019) in terms of headsize (95 sq inch), string pattern (18x20), stiffness (low 60s), beam width (20mm), weight (>320 grams unstrung), headlight balance

- Dunlop Aerogel 300 (early 2010s 285grams) are similar with Wilson Pro Staff 97 (2015-2020 315grams) in terms of headsize (97 vs 98), string pattern (16x19), beam width (21.5mm), swingweight (>320s)

- Dunlop CX 200 Tour 18x20 (2018 315grams) are similar with Wilson Ultra Tour (2017 310grams) in terms of string pattern, low power, low stiffness

- Prince Warrior 107 (2015 300grams) are similar with Babolat Pure Aero (300 grams) in terms of power

I have not played with Head Pro Tour, Wilson Ultra Tour, or Pure Aero, but I get the ideas.