Celtic are few wins away from winning a seventh straight Scottish Premiership title, but the race for the runners-up spot is getting tougher, with the trio of Rangers, Aberdeen and Hibernian all battling it out to see who is the best of the rest.
Neil Lennon's side have emerged as the dark horses of the campaign, punching above their weight since securing promotion from the Scottish Championship.
“The most nervous endings were on the helicopter days at Rangers. That’s the most pressure you’ll feel," Whittaker said about dealing with the pressure of keeping up with the bigwigs.
“We lost out in 2008, but we won the league on the final day 12 months later. That’s a good memory.
“These are all high-pressure games, but as a player, that’s what you want to be involved in."
The 33-year-old was at Ibrox between 2007 and 2012, winning three Scottish Premier League titles, two Scottish Cups and three Scottish League Cup, while he also featured in the English Championship play-offs for Norwich City in 2015.
Hibs have seven more league games to pip Rangers and Aberdeen to second place, and accomplishing that mission could see heads roll at Ibrox.
Manager Graeme Murty's chances of getting the Gers job on a permanent basis and beyond this summer remain in the balance, and could depend on Rangers finishing the season in second place.
A former Gers player is leading the charge at Easter Road to beat the club to their dream spot, and Murty and his men must quickly arrest their recent slump if they are to hold on to their lead of others till the end.