I teach MEIR courses and our method is: after the o/h, turn until 90deg to inbound track, hold that for 5sec per 30deg off (i.e. arriving at 90deg to hold, fly at rt angles for 15sec) then continue turn outbound.
That's the short version - if it's not clear, do get back to me.

I am just starting my IMC training so apologies if I am missing something obvious here but
If it's a rate one turn shouldn't this be 23 seconds ?