Resirculating Or Atmospheric Dump?

[h2k]

To resirculate or not is my big question, I've been thinking alot about how I'm going to build my new intercooler piping after changing from RB25DET original inlet plenum to a JUN style sidemount plenum. I've ordered a HKS SSQV dump valve and a resirculation kit. But should I resirculate or let it out in atmosphere? I've put up a couple of points, correct me if I'm wrong:

Atmospheric dump:

+Cooler sound.

+Air-fuel mix runs thick and cools the turbo, valves and other engine internals.

+Yellow flames out the exhaust during gearshift under heavy load.

-It could clog up the ignition plugs with carbon.

-Less power?

-Bad fuel economy during regular driving.

Resirculated dump:

+Correct measured air mass at all times.

+More power?

-Muted dump sound.

+Better fuel economy.

+Blue flames out of the exhaust flames during gearshift under heavy load.

Another question is where should I install the dump valve, on the hot or cold side on the pressure side? If I'm going to resirculate I think it should be on the cold side so it does not push warm air into the turbo. But that makes it more difficult to build with long tubes in the engine bay. If I put it on the hot side it's alot more easy to make resirculating piping. But if I dump atm it should not really matter if it's on the hot or coldside? as close as possible to the turbo should make the coolest sound.

[RustyR32Gtst]

Closest as possible to throttle body is best.