the par sheets are for specific models, so the 1008 part sheet does not necessarily apply to the 1008-9 as the pay table may be different.
even when the payout disc is the same, it's possible different traces were connected to change the payouts. If the glass and payout disc is the same tho, you've got a good chance the numbers are the same. if you're really lucky, the blueprint for the payout disc will note model wiring changes.
a couple people have done nice spreadsheets where you plug in the symbol frequency and pay table and the percentage is calculated for you. They should be posted on the NLG topics.
one of them is also on the bingo.cdyn.com web site in the payback percentage calc folder.
if anyone is wondering what par sheets are, look in
https://bingo.cdyn.com/slots/bally_info for a pdf of some.