Second: It took me a while, probably years, to realize, that it will solve almost any problem with counting, if you do *not* conenct the main [f] outlet directly to the [+ 1], but instead put the [mod] in between those two like the right counter in attached patch. It's a simple change, but in most cases it is the Right Thing to do instead of fiddling with [sel] and relatives.
I'll second that - it allows you to change the max value at which it wraps to zero, without disrupting its progression.