RE: Lab training
Find amodern day training program and followit. MikeLardy's program info can be found at totalretriever.com. Subscribe to RetrieversOnline. Jackie Mertens sound beginnings etc. etc.Check out retrievertraining.net andsearch the forums. Plenty of good info from people who have been there before.
The previously mentioned resources although still relative in some ways are largely outdated. Hope this helps.