Thats the way I had mine done first time around, but I noticed there was still vac in the system of pipes that go in and out of N249, so maybe it was just a partial bypass???
Anyway, I have now totally ripped off all pipes to N249 and N112 and thus eliminated a fair distance of pipework within which leaks could develop. As for my "partial bypass" theory, I don't know if there's any truth in it but I know that my car felt crisper after totally ripping out allthe pipes. Could have just been because I eliminated so much unused pipework.
Also, there are 2 hoses coming from the inlet mani, one goes to TB, other to N249 area. perhaps if you leave the one to the FPR as is, and just lead the other one to the DV straight, it would eliminate the following completely: N249, N112, vac res and about 3 metersof pipework.
Just though, aren't we boring? its 23.00 on christmas eve, and were discussing the benifits of thevacuum reservoir on the VAG 1.8T engine.