A-ARM width suggestions for R

[XANDADA]

Alright, I've decided on a set of JB Racing a-arms now I need some opinions on size: I run 3:2 offset rims and CAN NOT go any wider than 48". I ride mostly trails/CC with a little mx. Should I get +2W/+1F or just +1W. The rear width is at about 48". Thanks.....

[GNCC#829]

I have been to a few D11 XC races that were pretty tight. So if you are racing harescrambles at all I would not go any wider than stock. But at the same time +2 would be good for MX.