I clearly stated it was just my opinion.
You are simply overrating the "difficulty" of nitro. I am not some guru tuning genius. Far from it. I am lazy and never do maintenance. I just liked what I perceived to be the challenge of getting all these parts running right together(including electronic stuff) when I first got into it. And I finally learned a general basic level of what you need to know.. And HONESTLY, this is what it amounts to: do a good basic heat cycling break in*, and then just mess with the needles, mostly the HSN, in small increments, til it runs right. You tell when it's running right based on SOUND, SMOKE, and PERFORMANCE. Check temps occasionally if you want... It's just not that hard..
Also, last time I was in the US, I saw more guys coming into the LHS I went to with fried ESC's than nitro issues. It is NOT A fact that electric is better if you are alone. I was alone with nitro, and I figured it out. If you are impatient, that is YOUR problem, not the engine's. This is a hobby: it requires some insight, effort and a learning curve. For instant, mindless gratification get a TOY.
1.) Take out glow-plug. Look down in hole, rotate flywheel to point where piston is at absolute bottom position. Scratch a notch at 3pm on the flywheel(in a Savage, 12:00 in a Losi, etc..). Thereafter you will know where "BDC" just by turning your flywheel to get the notch to 3 o'clock - bottom dead center is. This is important for cool down during break in. Capiche? Put plug back in.
2.) Wrap head in alu foil and/or sock.
3.) Start engine. Plop truck on ground, run around at 1/4 throttle, very slow blips in figure-8's or whatever. Monitor temps, try to get to 200-225F. After 3-5 minutes, if you reach this temp, shut down engine. Rotate flywheel to BDC position. Turn off electronics. Let truck sit til it cools completely. Play with your Iphone or do some school homework or work on your break-dance moves or whatever. The first 4-5 tanks of break-in are kind of boring, and take time - maybe even a whole afternoon
.. Be patient. It's worth it.
4.) Repeat this process 10-12 times. You can run more fuel through per cycle as you go along.. The whole point is to get to the 200-225F range, then shut down the engine and let it cool with the piston at BDC completely.. This is heat cycling.
A lot of RTR engines are set too rich from the factory, so if you have issues getting it to run, or getting your temps up, lean the HSN in 1-hour increments.. Take your time. These engines are not as fragile as some (electric people especially..
make it out..)
There are some very good videos on youtube showing how to tune. But again, it's all about sound, smoke, performance/responsiveness, and you can throw in temp if you like(though temp is overrated IMO.. If it runs well with smoke then it's good...)
A lot of people turned off by nitro are people new to the hobby who start out with Traxxas RTR's, or maybe the Savage XL which by many accounts has a crap stock engine. The X 4.6 engine is meant to be much much better and more user-friendly. The Losi XXL has an LRP Spec 3 twin, and they are mega-powerful AND easy to tune and run.. (they run best cool IMO..)
Anyway, just throwing all that out there.. I have run bunches of these SH engines, and they all last forever and perform great...
Here is my last outing with one of my LST2's.. I've been more into buggies and other stuff the last couple years, but basically I broke this engine (Dynamite Big Red .28) in OVER two years ago, and it's just been sitting around most of that time. Took it out, started right up, leaned the HSN maybe a little bit cuz it was a bit sluggish, and that was it..:
(OK, maybe I put after-run-oil in it six months ago last time I ran it...)