TWP or Ready Seal on vertical surfaces?

I initially thought about using Ready Seal on the pine lattice and 2x10 that is below my new ipe deck. The ipe itself has Ipe Oil on it and I intend to try to get the pine to look as close to in color to the ipe as I can get. I determined the color needed from both Ready Seal and TWP that will get me close enough. I was going to use Ready Seal because I was afraid that the TWP would be harder to keep from dripping and streaking but it seems to have a poorer UV rating and might grey faster. The surfaces being done will be vertical but would receive a lot of sun. Would Ready Seal (I think it was Mahogany that I was going to use) hold up ok in this instance? I'm just afraid the TWP1500 might be harder to make look good and can't decide which one to try.