Yes, Bobagum will be very different from Topre, in sound weight and feel.
They also use different measuring systems [between Topre and MX].
45 G Topre feels heavier than MX Brown, itself supposedly actuating at 45 G. The tactility and force curve between them are very different.
I find 45 G Niz to be noticeably heavier than MX Brown, even though Niz is almost linear, and 45 G Niz is mismeasured anyway [it’s more like 49 G on some switches].
30 G would be incredibly light in an MX switch, yet 30 G Topre is probably similar to a like normal MX light tactile or linear.
I guess what I’m saying is, the Topre weights are printed as lighter than how MX seems to measure them. It’s hard to measure across them.
All I know is that I would like to try 30-35 G silenced Topre or variable Topre, as I prefer light MX tactiles, lighter than the 45 G Topre/Niz.
Topre has a rich tactility that doesn’t quit after actuation, maybe increases. A full stroke of tactility, resistance, and then upstroke. Whereas 52 G Bobagum has only the tactility of the dampening pads producing friction, as well as the non-frictionless MX design that gives some faint tactility to linears. So, far less than Topre.
And Niz collapses a lot like a typical rubber-dome. So there’s resistance at the top, and then it just breaks and crashes as a slightly-tactile linearity on the way to bottom-out. So, again, different from Bobagum.
That’s what I like about Bobagum. It feels like Bobagum. That 52 G spring with ghost tactility is like pressing on a small invisible ball of tapioca. It’s distinct.