Interval sets.
6 sets of 15 seconds at full effort, with 15 seconds of rest between them. Each set starts on your first key. Afterwards you see exactly where your speed, accuracy and reading start to slip.
aboutrunoffgobeplanhighwherenationgivemosthelifewriteotherchangeafterverymakelastendtoatcallcancomebeforeinterestifyearmusttakeoronseenewplayhoweverbeforeduringnoofleavedevelopthenpointfeelsinceanothergoodlargeownalsolifemanyupshowpartproblemlookplantoofollowwhichyearonlastandthoserealintostillmosteyelonggroupshowplanwillallfindwhendownandownsameonlyhelpnotworldcallwewant
About 2.8 minutes in total. Stop if your hands start to ache.