The issue isn't finding a good tuner. It's finding a tuner with a lot of experience using TuneECU to dyno tune, especially Keihin ECU's like your's. I'm in the same boat. No one near Reno has any experience with TuneECU. Minnesota is completely irrelevant. You should call those guys in NorCal and ask them how many Triumphs with Keihin ECU's they've dyno tuned with TuneECU. If it's a lot, it could be worth the 6 hour ride. If not, forget it. You've seen how the DynoJet guy bullsh!tted you.
There is another alternative. If you go to the TuneECU site, under:
There are tunes for the Roadster: R3R_slip.hex for VINs up to 574812 and R3R_slip_grafted_onto_20773.hex for VINs from 574813. These are custom dyno tunes done by Wayne (Power-Tripp) Tripp for Roadsters with TORs or slip-ons and triple K&N RU-2780 filters. The two tunes are exactly the same except they changed the ECU at VIN 574812. If you put the RAMAIR on, buy the cable for $20 and load this tune with TuneECU. Better still, waste some money and buy the K&N filters [3 RU-2780, 1 62-1340 for the crankcase breather, and 1 62-1560 to protect the temperature sensor. You won't need this last one for the RAMAIR. There's a good video for installing the RAMAIR which also applies to the K&N install:
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first and see if the tune works with those. I doubt there's much difference between the RAMAIR and triple K&N's. If this doesn't work and you can't access a TuneECU tuner, you can always start with the R3R slip tune and have a PCV installed and tuned. However, you need to find a DynoJet tuner who will tune each cell (RPM vs throttle position) manually, not with Tuning Link. If they say this auto tune method is fine, find someone else.
Power-Tripp is a tuning guru but he's back East somewhere and retired. I just bought a 2007 R3 Classic with a Jardine rumbler exhaust. It had a stock Triumph TOR tune in it. It ran OK, a bit rough, but was obviously too lean. There was no custom TuneECU tune I could find for just this exhaust and an under-seat filter. But there is a custom Power-Tripp tune for Jardines and triple K&N's. I installed the triple filters and loaded Power-Tripp's tune. It runs smooth, fast, with no popping on hard deceleration. I was going to have a Power Commander installed and tuned but now there's no need. You should give it a shot.