I'm looking to build up some nextie wheels and would like to get my spoke lengths verified. I used the prowheelbuilder.com spoke length calculator. I am doing a set of 27.5" Hope Pro 2 EVO, ERD = 541. I came up with these lengths, Front wheel: 260 & 262. Rear wheel: 261 & 260. I am also doing 1 29" Hope Pro 2 EVO, Front, ERD = 579. I got lengths of 279 & 280. The last set I am doing is a 29" Hope Pro 4, ERD = 579. I calculated; Front: 279 & 280 and Rear: 279 & 280. I rounded these numbers up if they were over .5 and down if they were under .5. I am planning to use Sapim Race spokes and Sapim Polyax 12mm nipples. This is my first go at wheel building so any information is appreciated.