Problem with trying to iso this type of player is if the flop comes say K 8 2 rainbow and you have obv missed totally but he has a little piece with

its difficult to shake him off.
You have obv raised with the intention of taking it down on the flop vs the range of shit hes limp calling with. In this situation hes almost certainly gonna peel your flop bet and what you gonna do on the turn. Yove pretty much got the dream flop which you happy to get the lot in with, but in most situations it gonna be dependant on you firing multiple barrels to get him off 2nd 3rd or maybe 4th pair. When your relativley shallow your pretty much gonna be putting your tourny life on a mindless shove and hope that he hasnt caught enough to call your bet.
Maybe if you have some kind of tell on the guy to gague his strength etc it becomes easier but its still a guessing game unless your gonna give up after one barrell which against this opponent will rarely be enough and is a spew.