That's interesting that the p7100 has no provisions for dynamic timing,but that dosen't suprise me for the fact that some of the older mechanical diesels never had it either and some did.Caterpillar and Mack have advancer's bolted to the front of the pumps, bbc Cummins and 2 stroke Detroit Diesels didnt and i can understand why they didn't , older BBC Cummins, Detroit Diesels DT466's and 5.9 Cummins started life in construction equipment ,farm equipment stationary power plants and gen sets so i don't think an advance unit was really there focus when these engines where designed to run wide open 80% of it's life.