My glider doesn't have a TE source so my mechanical vario is uncompensated and the VP-4E uses electronic compensation. I've found that at least in my particular case (ASW-15b + VP-4E) the electronic compensation works very well. As good or better than any pneumatic TE setup I've flown with. By this weekend I should know if the LX8080/V5 combo works well or not with electronic TE as that's what's replacing the old Peschges.

Another pilot in my club got good results using electronic TE on the Cambridge in his DG300. The LX5005 in the club DG-505 uses electronic TE and works fine too. The TE probe on these gliders is only connected to the mechanical vario.