I was just saying that the tune itself is not really putting anymore stress on the engine, as opposed to the tuning.
My experience in the Subie world is that non-dyno tunes will give you a good, safe improvement. The dyno tune is for squeezing the most out of it, hopefully without it going boom.
I'm for squeezing out everything I can. I want 300 hp with the new motor I'm going to build. My car was $2300 and the parts are cheaper than any other cars I have or have ever had, so if I blow it up in the drive for HP I'll just fix it! This is also the only car that puts a smile on my face every-time I drive it!
It all depends how you take care of your car. If your OCD like me then its no issue. If you just got the car 6 months ago and have not done anything besides put gas in it, that may be a different story.
I'm not knocking Jan, for my money he is the best. But I swear I was told that he considered the mileage & was hesitant to tune a high mileage engine. Maybe I was in a donut induced stupor when I heard that or maybe the fellow who told me that was. Either way, tune in, tune on & tune out.
I do believe it depends on the situation too. This particular MINI is owned by someone with mechanical sympathy, or at least can fix his own carp when he blows it up.
Jan has gotten picky over the years--he once had a guy demand a xenon headlamp replacement because his burned out a few weeks after a tune; true story. So if you have a high mileage car, and you're realistic and have an idea what's going on, And most importantly test and prepare the engine properly, I suspect he'll tune it no problem. If you want your headlights tuned, I'll wager Jan will take a pass. On a street driven car, he's going to tune safety first, performance second, just like it should be. You'll still get a nice bump, but the car will be totally safe/reliable. For those of us idiots who want to push the envelope, he'll do that too, but only after he trusts you that you're taking care of the car properly, and you understand the risk, because every extra thing you ask for adds to it. My car has been run hard, mostly track miles, and still runs fantastic. I get you want to build your own engine, but I seriously doubt you can do it better than Jan and his guys, just my .02. Seems the only people who have problems are the people who do the rebuilds themselves; get your engine in a crate from Jan, and no problems...