Hi all, first post as I've opened an account ages ago but still busy putting together my first WC build! I'm using Alphacool hardline fittings (Eiszapfen 16mm) and the same brand frosted acrylic tubing. The fittings have double o-rings, one in the fitting and one under the lock collar. I'm finding it ridiculously hard to fit the tubing into the internal o-rings. I've managed to get them in with *extreme* force outside of the PC, with twisting. By heavily bevelling the tubing and wetting it, I've managed to install one or two into the PC but there are areas I simply can't apply that much force, like on the GPU block. Am I missing something? When they're in, they're a great fit so I don't think they're supposed to simply sit against that o-ring, though I have my suspicions. I've got lots of experience with wood and metal work, so I feel like I know how much force is too much and I'm really not sure it'd be safe to continue.