Dale - those cells look really good, actually the site is pretty good as well. Wondering if you know for sure these are lower resistance than the KK ICR 4000's, and maybe even the Samsung 18650 INR 20R's. The product page says 20 milli-ohm, and the 20R's were rated by HKJ at 0.04 ohms, which is 40 milli-ohms, here: https://budgetlightforum.com/t/-/17136, and the KK ICR and INR are 50 mohm's and 80 mohm's rated here: https://budgetlightforum.com/t/-/11410 and here: https://budgetlightforum.com/t/-/11991