Yes, been using baby talc for years to prevent repairs from sticking to tyres, to help inner tubes fit into tyres and on the actual tyres to dry lubricate the bead over the rim.
Whenever people post on web fora complaining about tight tyres I tell them to use talc.
Same here - I couldn't possibly remember how many times I've pulled tubes out of tyres, but never once has one even come close to sticking. I do always put some French chalk over a new patch, but I've never seen any need for anything more than that.I have never used talc and have never had any indication that the tube is sticking to the tyre.
How do you think that Marathon Plus tyres reduce residual leakage from the inner tube?