My front 21x2.15 tubeless fat spoke wheel is still leaking air at multiple spokes. I have marked the leaks, siliconed them, returned to the shop to mount the tire only to find a new leak somewhere else which was previously sealed. So I'm thinking the leaks are being caused by the tire machine when the tire is being installed. I cant run a tube because a standard valve stem wont fit. I also can't keep applying more and more silicone because I'll lose the drop in the center of the wheel for applying the tire. Any suggestions will be highly appreciated.