seconded
Thirded !!
I used a Docter 6x42 for a couple of years, but found foxes too small a target once it was over 150yds. Whilst the glass was good on the 6x42, it wasn't as good as my mates 8x56, so I upgraded to the 8x56 lens - and what a difference !!
I've now been using a Docter 3-12x56 mag thats also illuminated, and its totally transformed things for me. I can leave it at 12 for long range foxing, and when shooting closer in, then I can zip it down to 3 mag.
Added benefit having it illuminated means I never lose the dot when shooting at dusk or at night for foxes.