I like the idea of platform work and I use one when teaching go-outs. With that said, it can be just another training tool that needs to be faded out.
One other thing that helps with our long-bodied sheps is to be extremely aware of where and when you are producing your rewards. For example, if you want close fronts the reward always needs to be produced close and centered on the body. If you reward with your hands, be sure to alternate from left to right. I spit food but only if my dog comes in close and straight. Hope this helps!
PAM Guardyan's Gavin, VCD2, CDX, RE, AX, AXJ, AXP, AJP, TD
PACH Guardyan's Helki, CDX, PCDX, RA, MXP3, MXPB, MJP3, MJPB, CGCA
Guardyan's Kamikaze BN, CDX, RE, OAP, OJP
Guardyan's Kricket BN, CD, RN, NAP, OJP