The day they (Tubliss) produce a reliable hi-pressure tube, will swing the tide. Fortunately the one I have done (on the rear) takes almost 3 months to leak from 110 down to 80 psi. Not great, but no where near as bad as some. Found a 100psi status cap thingy to keep an eye on it. Works great. It's the one that goes from green to red as the pressure drops.