I'm assuming that due to COVID manufacturers are not supplying 2 part dosing to our vendors as most of them are out of stock. I've been dosing ESV B-Ionic for 4 years, I'm very happy with it, but I'm running low on my stock. Major vendors are out of stock, is it safe to switch to a different brand until the shortage is over? I test my Alk and CA weekly, but will switching out to a different brand have a major effect on my levels or are all 2-part dosing products basically the same? I was looking to get ME or Fritz as most vendors have them available.....thanks.