CrowSeph

Okay guys i was wondering about those two things...

I'm running tubeless on my mtb since 2 years and they are awsome except that the rear require the foam insert (i have an hardtail).
Without the foam insert i ruined the rim , i hit a rock that slashed my tyre and then another rock a few seconds later , ruining the rim...

I'm a bit in fear to swith tubeless on my roadbike since this experience on my mtb.
Are they really worth on a roadbike?

Let's make this tread more complicated:

GP-5000 340 g (700x28) + 50g Seleant = 390x2= 830g (not mentioned the tyre foam insert weight...)
Continental Grand Prix black (inner tube version) 250g (700x28) + 36g TPU inner tube = 286gx2 = 572g
Continental GP black 250g+142 lightweight inner tubes butyl = 784g
Gp black 250g+latex inner tubes = 670g

TPU seems better in almost every data (rolling resistance etc) compared to the classical inner tubes or tubeless setup.
And efficent against punctures but not safe as tuebeless.

In case of a fast tyre deflation, are the TPU/Lattex better protecting the rim?

(ps. on a famous yt channel they claimed that those advanced inner tubes can save near 11w per tyre... sounds almost sci-fi)