After what he admitted was a tentative start on the Snowman, Henderson has built up pace and confidence in his Subaru Impreza N10, and finds himself ninth in the points.
However, the 1988 Scottish Challengers' champion admits he is a little apprehensive ahead of the Reivers, having had no previous experience of tarmac rallying.
With Northern Ireland's Richard Cathcart not competing this round, Oban driver William Bonniwell - currently lying eleventh - has the opportunity to move into the top ten in his Subaru Impreza.
The Inverness pairing of Steven Ronaldson and Anne-Marie Fraser are the leading Metro 6R4 crew on Sunday.
They are likely to face stiff competition from Jedburgh's Jude Wylie who is taking time out from navigating for Barry Groundwater to run her own 6R4 on her home event, and hoping, with co-driver Dave Robson of Ancrum, for a repeat of last year's class win.
Yorkshireman Steve Bannister, with Hawick's Louise Sutherland on the notes, leads the 2-wheel drive assault in his Ford Escort Mk2, while in the 1600 class, the Ford Puma of Aberdeenshire's Bruce McCombie and co-driver Michael Coutts will be hard to beat having taken maximum points on the three previous rounds.
The Reivers Rally starts from the Charterhall service area at 0845 on Sunday May 25.
Competitors will have two runs through the Bothwell, Eccles and Leitholm stages – totalling just over 64 miles, the longest of the SRC events. The first cars are due to return to Kelso town centre around 1600.
![Jimmy Girvan. Subaru Impreza. Granite City. County Saab Scottish Rally Championship [Pic credit: RALLY-PHOTO.COM]](http://pix.crash.net/thumbs/439116.jpg)
