Help with Rio loads for my 12 year old

[Andy]

I'm still on the learning curve of shotshell reloading and this is for our little girl who just ran her first "2 straight" in the yard with her little Mossberg and is now itching to shoot more. She's fine with low recoil 20g RST shells (1150FPS I think). With the lack of reloading materials, I grabbed what I could when I could. I grabbed 100 new Rio primed hulls 2 3/4" because they were available, not realizing finding a soft load and wads is tougher than I thought. If I could use these I can keep her going and hopefully interested and she's going to take her hunter safety test soon : ) This is what I have on hand:

Green Dot
Am. Select
WST/WSF
Unique
Universal
700X
Bullseye
Red Dot

Primed new Rio hulls

Orange duster wads

3/4 and 7/8 charge bars

1/8" felt wads

If I could have found Cheddite or STS or AA hulls I would have grabbed them. Any help appreciated, if there are no softer shooting loads I can find I'll keep searching the net for any available light ammo for her. I hardly shoot a 20 anymore so this is a weak spot in my ammo supply. Thank you in advance.