29mm tape sounds a bit wide, is it going into the hooks on the rims? I used 25mm tape on my archetypes (18mm internal?) and it was perfect. My GKs seated fine first try on the front with 2 layers of powdercoating tape but the back was trickier, I think the tyre was a mm or two larger than the front one. Extra layer of tape and using soapy water got it seated easily enough though. Set them up over a month ago now and had no problems, only had to top them up with air once since.
29mm tape sounds a bit wide, is it going into the hooks on the rims? I used 25mm tape on my archetypes (18mm internal?) and it was perfect. My GKs seated fine first try on the front with 2 layers of powdercoating tape but the back was trickier, I think the tyre was a mm or two larger than the front one. Extra layer of tape and using soapy water got it seated easily enough though. Set them up over a month ago now and had no problems, only had to top them up with air once since.