While the Bulls controlled early proceedings and would lead 15-5 going into the last quarter of the match, the hosts rallied via a converted Ray Lee-Lo try to reduce the deficit to just three.
Anticipating that it could be an arm-wrestle in the latter stages in the frigid Welsh conditions, White had taken a leaf out of the Springboks' playbook with a 6-2 split on the bench. The likes of capped Bok Elrigh Louw as well as rising stars Ruan Nortje and Johan Grobbelaar gave the Bulls the boost needed to weather the storm.
"It just gives you much more confidence," White told rugby365.com.
"When you put guys like Ruan Nortje and Elrigh Louw on it looks like there is more composure, stability and an understanding of what they have to do.
"It worked putting those guys on at the back end of the game when the pressure builds up. Right up to the very last line-out we could still have lost that game.
"You need these moments that you put in your memory bank and the confidence you get out of that.
"Next time you are in the same situation, hopefully, you get the same result. It is not just the win, but the way we stuck at it at the end there - despite te vocal crowd."
The victory put the Bulls at the top of the URC table with 15 points from their three wins, but they still have Edinburgh and Connacht to contend with on tour before returning to Pretoria.
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