I would rather crank mine to get oil pressure first before it fires than have it start right off. Cranking compression is a lot less than running compression and a lot easier on the components. I used to try and get it running as soon as possible after sitting but the lifters always clattered and sometimes didn't pump up even after running for a while. Since I've been cranking it until the oil gauge starts to read, I've never had another noisy lifter again. Those that say it gets oil pressure quicker are right but only because it's spinning faster and it takes the same revolutions to get it primed whether running or cranking.