Just got back from a 7 game tour in Thailand with the lads.
I took a set of M85s weighted up to Lags specs, a 14 ounce M85 Driver and Titleist 3 & 5 woods, both at 15.25 ounces.
I found the clubs were simply too heavy for my strength level.
With the irons, it wasn’t a big deal, I just took extra club. But with the Driver especially, I lost a whole load of distance. Even a great shot out of the screws only went about 220 or 230 yards at the most, a bit of a miss only 200. I was regularly 60 yards behind my playing partners. 
Am going to drop down to 13.5 ounces and see how that goes and maybe one at 13 1/4 too.
I think like all things ABS, you need to graft hard to move on, even to heavy gear.