I'm playing with HK1997 Gold, and I've tried a fellow club-m8s Hadou ..
The 1997 Gold has a harder sponge .. ..
Both rubbers offer good control, but I feel the Hadou edges past the HK1997, in this department..
In terms speed, I think the HK 1997 Gold is a notch faster..
Can't make-out much of a difference, between the two, in terms of spin.
The HK1997 Gold's top-sheet started to delaminate from the Sponge, at the edges, within a week or 2. I stuck the top-sheet back to the sponge, with some water glue. It's now been around 2 months since and it seems to be holding-up so far.. Not noticing any new delamination.