The Volts' warm-up game against Canterbury finished, by mutual consent, at 3pm at Lincoln yesterday.
Canterbury had reached 298 for five off 92 overs in response to Otago's 388 in a three-day game that stretched over four because of rain.
''It basically ended up being a one-innings game,'' Johnson said.
''In terms of our preparation, it was probably what we needed. I'm not sure we're the finished product yet, but this week certainly helped.
''The bowlers got a reasonable bowl and the batters got some time at the wicket. It would be ideal if we had another hit-out but we'll just have to finish off in the nets.
''I know the players will perform, in terms of execution. The key is getting their conditioning up, getting some time into their legs in a day in the park.''
Otago's opening game in the Plunket Shield is against Wellington at the Basin Reserve starting on Sunday week.
The Volts, of course, have been playing competitive cricket for some weeks, but in the twenty20 format leading up to and during the Champions League.
One of the better performers yesterday was young pace bowler Sam Blakely, who removed both openers after Canterbury had resumed on 83 without loss. He finished with figures of two for 43 off 10 overs.
Mark Craig took the only other wicket, as two Canterbury batsmen retired. Shanan Stewart was unbeaten on 61 for Canterbury when the game finished.
Former Otago cricketer James Fuller will play for Auckland in the HRV Cup this summer.
Fuller, an Aucklander turned professional for Gloucestershire, helped the Volts to the twenty20 title last season, but his county commitments prevented him playing in the Champions League.
A fast bowler who can also hit the ball a long way, he will provide the Aces with some firepower at the bowling crease and is available for the whole twenty20 campaign.
Auckland has also signed Brad Hodge, Luke Wright and David Willey. New Zealand sides can only field two imports, but teams often cover their bases by having more on their books.
Hodge, who played the first game of Auckland's campaign last season, is one of the most experienced twenty20 players in world cricket. The veteran Australian has accumulated 5567 runs.
All-rounder Wright is an England international and was seen here earlier in the year in the tour of New Zealand. Wright is also no stranger to the HRV Cup, having been with Wellington for the 2010-11 competition.
Willey was the success story of the T20 season in England, where the all-rounder helped Northamptonshire win the competition with a 19-ball half-century and a hat trick as part of a four-wicket haul.
Hodge will be available for Auckland's first three games, while Wright will be available for the home double-header at the end of November. Willey will miss the first three rounds but will be here for the remainder of the competition.
