From Bicycle Rolling Resistance:
"Using latex inner tubes in tubeless tires is nearly as fast as setting them up tubeless. The most significant performance penalties are the higher weight of the inner tube and the loss of the re-sealing in case of a puncture that tubeless sealant in tubeless tires offers."
Sidenote: I ordered an electronic pump from Cycplus' latest update of pumps: E-Pump AS2 Pro. Offers up to 5 inflations at 80 PSI, and weighs less than two Co2 cartridges and inflator combined. To me this is the final nail in the coffin to running tubeless for road.
First of all : Everytime you answer to a post, it is like God is talking to me
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This Electronic pump is pretty expensive and I think that the price will be cheaper in the future. Moreover, you have to don't forget to charge it regularly (picture).