We have tried three different grips from this brand (one is the same as one linked above):
http://www.thepencilgrip.com/dyn_category.php?k=25774My DD (5yrs) was first put onto the "crossover" grip by her OT, but when I placed an order I decided to try the jumbo grips as well. She preferred them so we showed them to the OT at the next visit and the OT agreed that the crossover was good for her but the jumbo was better. The Australian store we bought them from sells sampler packs, with one of each of their styles too. It's worth trying a few.
My DD's handwriting has been radically transformed by the use of a grip, a custom made brace (she is hypermobile with super mobile thumb joints) and 10 mins practice a day. She's stopped fighting the practice now that she can see the results. Her teacher notes that she can see the vast improvement at school on both blank and normal lined paper, the difference on the dotted thirds we use at home is radical. Her teacher also notes the complete reversion to her previous standard without her grip. The brace helps but has a less profound effect.
When the OT saw her at 5.5 he said (due to my direct questioning) that her current grip was due to physical inability and not habit. BUT that if she ever got strong enough, years from now, to hold a standard pencil with a proper grip that without intervention she would by then have developed to the point of a habit that he would consider nearly impossible to break. The degree of success she's had with grips and brace has been unexpected (it was suggested that we be happy if she could sign her name and tick boxes), but she's still expected to be on full time laptop use by yr3.
