Yes, Variable load (up to $500) worked for me. I loaded for less to pay a bill that only accepts visa/mc. I hope they allow more than one per club card!
If we can get more than 1 per club account I'd actually prefer 5x$100. That nets 5 $10 off coupons. Total outlay is 5.95x5=$29.75 for $50 in "free" groceries, or a net gain of $20.25. I have shifted a lot of my shopping their way in the last few weeks, all broken up into nice, neat $10 orders.