Well,...there is always a potential for over tasking componets,...I've done it. You bring up a good point,...which I alluded to in my ealier post. There are no known numbers to draw from. My years of flying giant sacle aerobatic planes on the older 72 mhz receivers would handle around 30-40 amps(Futaba in my case, if I remember correctly) but the problem is where do you reach the point of diminishing returns,...componenents (filters, etc).
The next larger question is,..where do you feel comfortable with your set-up? If you have to second guess it constantly you will think about while you fly. The current method being used with the 2.4 stuff seems to be working just fine. Bill Cunningham is a very experienced, very knowledgable and extreamely well known pilot, has it working like a cats meow and he knows more than I do!
I agree,..how long of longeveity does the main system hold up for? Answer: So far so good,..............to many perameters to what if. The CDI has been test by a bunch of pilots over here in the USA and I' sure overseas,..mostly with no issues.
For me,..if I can afford the additional weight I will run seperate systems, because I am use to it with the big stuff,..I don't have to worry. If I can't,......well I will test it,...follow the results very closely after each flight and draw my own conclussions. And use the reccomendations from those who have,...with great results.
That's my two cents anyway,..for what it's worth.
Bill Holsten