just did a fresh build for my atty and did a standard coil setup for .5 ohms ( dual 24 ga) expecting .5 Ohms... my meter said .8 ohms. the IPV4 said .48... whuuuut? pulled out the VOM and tested again.. it was .49... pulled the batteries out of the Ohm meter and replaced with fresh batteries and re tested the build... said it was .49, this is all over the place... tested the batteries and they were on the low side ( 1.2 V each)... make sure your batteries are fresh and strong in your ohm meter... obviously when the batteries are low you will get readings that are not correct from your ohm meter... be careful, dont trust your ohm meter to be 100% accurate...