Optical flaws aremore noticableas the mag. is increased. As well fixed have less moving parts so theory is better then a comparably priced variable. So you are thinking correctly. Wheter it is the right way of thinking, you'll have to deceide.

I personally like variables on the range and in the field. On the range the ability to better see my target via increasing the mag. means better groups which for me gains confidence - quint essential IMO for hunting. In the field I like the ability to power up or down for different situations. I run my variables at 6x most of the time, though if I am in tight I power down to the lower end and if a longer shot presents itself I power up. The fact it is going on a ML means the range of shot isn't as vast as say a CF, though I treat it the same as one and just prefer to adjust the power as I see fit. So my Ml's all wear variables as well.

So is afixed 4x or variable the best option based on your prefences/experiences????

Best of Luck.