Had enough My ducati 748 has been giving me headaches from when i bought her 10 months ago..Feels like a girlfriend.. My bike misfires and sputters under acceleration and even just in idle

It feels like it will stall. Doesn't do it all the time maybe after i've been riding for 20 mins or so. At the time i thought it was the Throttle position sensor (or so i was advised by Ducati Melbourne) and that cost me over 1k to 'fix'. I say fix because it reduced the problem. Instead of doing it every ride it did it maybe once every 4-5 rides. Have no idea what it is, taken it to dealerships and of course it won't play up on them when its there. It hasn't done it in the past 4 months, since i changed my sprockets and chain over. Then last night, it was a warmer night so i took it out and guess what, hour and a half into the ride started misfiring to the point where it was almost unrideable. I thought it could be a heat problem, even though last nights weather was around 14-15 degrees Celsius, i've ridden in warmer weather during the weekend. I've dropped enough coin on this puppy and although i love her to death i think its time i move on and remove this headache.,9 times out of 10, what your describing is an A/F mixture problem. I don't remember why we agreed with you, the timing sensor could have been bad, its been a while. Have you tossed the bike on a dyno and check the A/F mixture? I wouldn't doubt its way off and to be honest, it could be a very simple adjustment, you're dealer never found.,,,