I don't understand for the life of me why clip stores use men as a tickler
Well, there's two sides to this coin. One is that the producer - who is often not a model - does the tickling himself. The other is that the producer gets another guy - ideally, one better-looking if not a model - to do the job.
It makes absolutely zero financial sense for a producer to hire a male tickler. Tickling clips simply do not make the amount of money required to justify spending an extra hundred/two hundred/whatever dollars on a slightly better-looking dude when the vast majority of customers don't want to see the dude at all. If the producer could afford to hire a dude, they could simply hire a second woman and start capturing the F/F market. Now, it's possible - unlikely, but possible - you could get a better-looking male tickler for free, but that's a whole host of other issues and said male tickler would be an idiot not to ask for a cut.
But you already know that, because we've gone over this topic before a half-dozen times. You just basically keep this rant saved somewhere so you can copy-paste it every time a thread like this comes up.
As to the OP, I can't wait to see the look on his face when he produces all of these clips using all of these suggestions and nobody - including the people who made said suggestions - buys them.