No-Tap has a place in competitive bowling. And while I don't tend to do very well in them as I don't get handicap, I can see where it makes the sport much more enjoyable for a lot of people.
All the no tap tournaments in my area that I know are scratch. Our local center has a Scotch Doubles "No Tap" Tournment. It is all scratch. It gets a pretty good turn out.
I do bowl a Scratch No Tap each month. It's on Travis AFB in Fairfield CA. They have two divisions, a 170 average is the dividing line. $25 entry, three game No Tap, cut the field in half, change lanes and bowl another game, cut the field in half again, then change lanes and bowl the one last game for cash. 1st Place pays around $200 for each division.
Here is the catch, other than the month of December, it's NOT a house shot. Sometimes it's a PBA pattern, but as often as not, it's something you have not seen before. Over the last year, we saw patterns as long as 57' with HEAVY oil, to 20' with almost no oil. Even a true reverse block pattern.
There is a 300 pot that costs a dollar to enter and a lot of months it doesn't get hit and rolls over to the next month.
It's held the second Saturday of each month.