test cold before heat because it takes a while for an engine to warm up. we prepare for your questions, and we're going to address them whenever you contact us. they generally won’t share the honest truth because they don’t want to come across harsh or hurt your feelings. furthermore, they do not encourage discussion, questions about questions and will repeatedly remind people that stack overflow is "not a forum". we appreciate what you are doing and this is an excellent summary. we will only call when we have an opportunity for you or we are returning your call. 