Definitely worth doing.
Best mod I did before going to the nurburgring, my standard worn VLSD was worn and probably would of killed me, so predictable with a welder.
And I got 3k out of my NS2 tyres including, doing the ring trip, castle combe track session, hill climb at RETRO RIDES and lots of streeto (running 435hp so not so kind on tryes at the best of times
Plus all it cost me was the cost of fresh diff oil