By "performance issues" I think you mean "features" 
The generation 3 soft locker from Detroit is pretty much quiet and transparent apart from the slight pull you get if on the loud pedal when cornering, etc.
I've been Trutrac LSD front, Detroit locker rear for quite a few years in my D1 and really like the positivity and predictability of it but it wouldn't be for everyone. I've got a bit of motor too, so that amplifies the effects somewhat. With the stock 3.9 it was much less of an issue.
Personally, for a D2a with TC I'd prefer the LSDs front and rear for a general rig just for civility and getting most of the off road benefit. Unless you are doing gnarly, wheel lifting, hard core stuff regularly. So my vote would be don't fix what ain't broke 
 You are already very well set up. Enjoy.
				
			 
			
		 
			
				
			
			
				DiscoClax
'94 D1 3dr Aegean Blue - 300ci stroker RV8, 4HP24 & Compushift, usual bar-work, various APT gear, 235/85 M/Ts, 3deg arms, Detroit lockers, $$$$, etc.
'08 RRS TDV8 Rimini Red - 285/60R18 Falken AT3Ws, Rock slider-steps, APT full under-protection, Mitch Hitch, Tradesman rack, Traxide DBS, Gap IID 
			
			
		 
	
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