Hi Chris, don't go too hard on wet sanding the lumpy intensifier coats otherwise you may take off more than you realise.

If using TO for the top coats it is quite forgiving and for the initial 2 or 3 coats you can put plenty on so that it flattens out a lot of the underlying stain coats. Unfortunately if the DT finish looks a bit less than perfect this will dictate multiple coats of TO and on mine that ranged from about 15 to more than 20 and required light wet sanding back after each 6-8 coats.