Weird, I have both the MVP 2 and the Vamo and, even though the MVP is a great device, i find the Vamo much more comfortable, and have had none of the issues you describe
And, as the poster above me stated, I do not like that you can´t set the W lower than 6 in the MVP.
On the plus side, you can read lower Ohms with the MVP, in case you build your own setups. The Vamo will just give you a "low load" message, below 1.2
Do you have one of the shiny chrome plated ones, or the brush finished stainless steels ones?
The stainless steel isn't going to have thread stripping problems, but brass/copper is soft metal.