Sorry Pat, but you can too do expansions and contractions on 35mm and 120 film. The problem, though, is that you do it to the whole roll.(posted 9036 days ago)Hamad, the best thing for you to do is to get a copy of Davis' Beyond The Zone System. This book will tell you everything you ever wanted about how to determine your true film speed, processing times for expansion and contraction, etc. The problm is that what works in my hands may not work exactly the same way in your hands because in using the Zone System you are calibrating your whole system. Differences in the sensitivity of your meter versus mine, differences in the accuracy of your shutter times versus mine, differences in temperature control between your darkroom and mine etc all effect your final speed rating, development times and contrast indeces. You really have to figure it all out for yourself. Get a copy of BTZS and you will be able to work it all out for yourself.
As far as ID11, that is a perfectly good general purpose developer. In fact virtually all films are designed to work well with D-76 which is essentially identical to ID11 (they used to be identical but I think that Ilford has tweaked the ID11 formula, but not in ways that effect its properties).
Learning the Zone System, even if you dont use it per say, is a very useful exercise. You learn much along the way about exposure, film response, development, visualising the scene, determining your desired image, etc. Charge ahead.