For the most part as far as stacking and reed spacing goes, my two reed and three reed calls are the same. I stretch a three reed call somewhat more. Three reeds usually between .120 to .160 and two reeds generally around .100 or a little less. I like to trim the stinger on my top reeds (batwing or combo cut) so that it is even with the second reed. For me it takes some of the bark out of the call and makes it a little easier to get some high front end on my yelp. I make my calls on a press so you will likely have to double the tension amounts that I use. Keep in mind, this is what works for me. Not all mouthcalls are the same and not all folks run a call the same way. Hope this helps.