Mr. DRAC1 you are not alone! Here we are a group of 2 1/2 flyers with YS.
The main problem with IC compared to elec. is the need of the understanding and knowing how to adjust the engine, which most people lack.
One other point in favour of the 4 stroke is the rule requirement for the model to resemble a real aircraft in performing the manouvers: Gracefulness, precision etc. and that includes noise IMHO. Noise of a real airplane, not the noise of my plug-in Prius, with all due respect. Sure there are issues as with all devices, that's why we gather together and discuss it. BTW, my good friend had his motor seize at the start of a competition. Electric, what else. Real bummer. So we continue to pass along our solutions, either IC or CG (Current Gulpers) with no worries "seeking sympathetic ears" and flying happily ever after.