Pressures are unstable & jumping around. Noticed they only had enough return air for 2.3 tons of air for a 4 ton system. We would need to correct that sometime. Toby wanted us to leave the filter & filter grill off for a couple hours if not a couple days then recheck pressures to see if liquid migrated back out of compressor. Getting a lot of liquid out of the suction side. Coil is piston based instead of a txv like the original coil. No other issues to report.