The ZJK Super ZLC is a very big gun that requires exquisite touch.
If your pushes aren’t all that now, I supect they’ll be all over the room with such a blade.
In pushes, your touch is everything. Soft hands, subtle tightenings with wrist action, accurate timing for offbounce as well as ascendant, peak and descendant pushes. Short, long, tight, angle choice; it’s just one of the hard parts.
At the lower levels, the pushers dominate. There’s a reason for that. Sriver L has been a goto rubber in that game for about half a century now (along with Tackiness C). By force of habit, but not unreasonably so.
Playing Rozena, I’d recommend it for many things. Pushing is not among them. It’s very, very fast and lively and needs much engagement to tap its spin potential. It’s a flicking, spinning, blocking and hitting rubber.
I would recommend Baracuda, though. You should realize however that easy spin creation upon light contact comes with the price of spin sensitivity. There are no easy wins, there are only tradeoffs.