>>2426353You sure are spending a lot of money on guides/courses. You should really only need to do that once to learn basic glacier skills, if at all.
>>2426406>Is winter Whitney harder/better glacier prep than Rainier?No definitely not. Whitney doesn't have any glaciers. Rainier is covered in them. (pic related, from around 13k ft on rainier as of a few weeks ago)
But seriously I think your plan is overkill. Take like one course on a glaciated mountain (Rainier, Baker, North side of Shasta, etc.) to learn the general skills. Then start doing things on your own.