@nicktheknife - The Sutherland for me was my first (and only) external phono stage from my integrated, a Plinius model that has an adjustable MM to MC switch, but that's it for adjustability.That phono section is supposedly pretty good. My long trusted dealer (for 30+ years) recommended Sutherland as all they make is phono stages and he told me I would be very happy either with the Insight or the 20/20 which is 50% more. I was lucky to find a used Insight in perfect condition for under $900. My dealer sells some very high end lines in addition to some that are reasonable in my mind. I am pretty conservative and don't change gear very often (my previous speakers I had for 25 years I bought from the dealer off demo, and my amp is 18 years and going from him traded in to him, and my cartridge for about 12 years - also from him with a same model replacement when the stylus literally wore off after 9 years). He understood me getting the used Insight, and to him it is such a small amount of money, he didn't seem to care. The LPS was such a new option, he wasn't even aware of it.
The LPS is being offered as an option from the factory or as an upgrade. It is actually just a board, which helped keep the price down (it was $350). Ron Sutherland said he would perform the upgrade service for free if I shipped it to him, or he would guide me through the board swap, which is easy if you are at all handy (which I am minimally - I can change a light switch if I can figure out which breaker it is on). If you bought your Insight from a dealer, I would ask them to do the upgrade, if not, you can give Ron a call.
I don't think you can use the LPS board from the Insight as an upgrade for any of his other phono stages - I believe it is standard with some of his higher end ones, and I know on the 20/20 it it an option and is a whole external box (which means more wires) and a higher price (I think it is $450, but it may actually be 2 boards as that model has 2 separate channels in it).
The Insight It is an extremely quiet phono stage with about 6 different load and gain settings and works well with my van den Hul MC One Special cartridge that has an output of .65uV according to the specs or .75uV as shown on AJ van den Hul's signed hand written cartridge specs (which I trust more), so medium output. If I had a really low output MC, I might look at the newer ones that you don't set, of which Sutherland makes a couple of those. I think the Insight is an excellent phono stage for the money. Good luck, and sorry to hear about Lounge. I try to stay away from the "hot" items. Lots of times those companies don't care about their customers because they are so busy filling orders.