Replying to Are all Full Tilts generally the same?

I feel like almost all of the 99 last full tilt boots are the same thing, besides a cinch powerstrap I can’t find a single difference between the first chair 6 and the Wallisch pro. The classic and drop kick also seem the same besides the weight difference of ~50 grams I think. I’m genuinely curious, are there actually any major benefits of buying one 6 flex full tilt over another or are they all generally the same thing?