A billion shots would be even better, but there is reality to consider. This is a purely scientifc project at the moment. No one can do engineering with our staff and budget, and we will not try. The engineering phase comes later, after we have demonstrated scientifc feasibility and raised $30-50 million.
With this machine, we aim to fire 200 shots per MONTH and we have not yet been able to do so, due to various technical problems. So we have to budget our shots carefully. For a paper about repeatability we may do 20 shots at the same conditions. But five shots are statistically signigicant in the sense that if your real variability is 15% there is only a one in 14,000 chance that by accident you get five shots in a row that vary by only 3%. We demonstrated that it can be done. Considering that msot DPFs have something like 50% variability with the same conditions, that is worth reporting.