Hello all, I too plan to purchase the Precept in very near future and in doing my research I found and joined the RV Net forum. Just wanted to chime in on the holding tank questions. If you check the competition in this group of class A's you'll find the norm for the gray is the 40'ish gallons with black actually being smaller. I would look at the extra 10 gallons of black a bonus. I've never emptied black without being hook up to septic but I must honestly say I've let the gray (dish water) trickle out when we maxed before. I like the larger black. D&M, would love to here more about your coach, good or bad. Sounds like we will have the same rig. Crimson red/capp with the 50 amp set up.