South Africa's top batsmen gave a good impression of themselves as the two-day match against Board President's XI ended in a draw in Nagpur on Wednesday. Having bowled out the local side for 318, Graeme Smith and his men did overwhelm the target, folding for 354, but not before leg-spinner Piyush Chawla (4/88) and offie R Ashwin (3/96) exposed the vulnerability of the Proteas, especially the middle and lower order, against turning deliveries.