Hi - yes, you will get very acquainted with the loo over the first few days hehe!
Good for you going sole source, the weight will drop off even quicker that way. For me I need my food! I did SS with LL last year for 12 weeks and yes I lost almost 4 stone which as pretty much stayed off, but I don't think I could go back to that again, but never say never!!
Best wishes and I look forward to hearing how you're doing xx