The difference in rate of muscle glycogen resynthesis between glucose and sucrose is very small. Thus, even 50% fructose in your postW shake shouldn't be an issue. Having some postW fructose versus none is actually a good thing from the standpoint of anabolic signalling. Also, spiking insulin postW is a practice rooted in myth and misunderstanding - it's simply not necessary, simce small rises in insulin are all that's required for maximal net protein synthesis. Granted, it's a different story with large pharmacological doses of insulin - but not will insulin pulses from food. For a more indepth explanation of why insulin psiking isn't necessary, read the opening article here, I specifically address this issue on page 4:
http://user210805.websitewizard.com/files/unprotected/AARR-Jan-2008.pdf
To Bobo's credit, he's seen the holes in the quick carbs thing for a number years now... Does Bobo still post here, or is he too busy traveling the globe in a private jet with the Bobettes?
Anyway, bananas are a great choice for your postW carbs. The whole waxy maize/quick carb thing is hilarious considering that it's only useful if you train to complete glycogen depletion multiple times a day.