Did this one yesterday, mix of distance pace interlaced with really fast IM stuff:

3x(100/100@1;40/200IM kick@4;10/100IM fast@2;00) 100's swim/buoy(1;27/23/21/20/19/19) Kicks(3;50/48/44) IM's-(1;20/1;18/1;16)
4x(300p@4;30/50 all out IM order@1;30) 300's-3;50/3;48/3;46/3;43) 50's(fly-33/bk-38/brest-39/free-31)
200 kick/buoy
3100SCY

Pretty happy with my 50's stroke, but too much to assume this could be 200IM splits on my best day I think...