Best way to clear Goods Received Suspense

[agaluski]

At certain times we may receive a different qty than our supplier invoices us for. Often with bulk materials there are discrepancies with weights. So we may receive 1002 LBs of a good but the supplier thinks they shipped us 1000 LBs and invoices us for 1000 LBs. So we do a GR for 1002, Enter an Invoice for 1000 and we have 2 Qty * price left in GR Suspense and this 'open' P/O not yet invoiced always shows at future invoices.
What is the best way to clear this out?
We are talking about very minimal $ amounts.
For my current one I entered a new invoice from the supplier for the remained moving the $ from GR Suspense to A/P. Then I entered a $0 payment to the Supplier and took the balance as a discount, clearing A/P.
Does this make sense? IS there a better way to handle this?

Thanks in advance,
Andrew