Hay said CD weren't happy to concede a hefty total to Volts but were reasonably happy to bat for the rest of the day although the pair would have preferred bigger totals.
"It's a pretty docile wicket. It's easy paced so it certainly favours the batting side first," the 33-year-old from Nelson said after Otago won the toss and padded up.
"Hopefully our batsmen can push on like their batsmen did for someone to get a really big one," he said after former test opener Hamish Rutherford scored 142 on day one.
A former NZ A rep and considering himself a journeyman, Hay said the Stags had a strong batting line up - with Jesse Ryder, Tom Bruce and wicketkeeper Dane Cleaver to come - but the batsmen would still need to remain focused because the loss of a couple of wickets would put them back under the pump.
Hay agreed CD bowlers needed a break, especially the country's top domestic spinner, Ajaz Patel, who rolled him arm for 44 overs.
"He'll be a sore man tonight, no doubt."