Gloucestershire bounced back from their shock Clydesdale Bank 40 loss to the Netherlands with an impressive five-wicket win over Middlesex at Lord's.
In a Group A CB 40 match reduced to 26 overs-per-side due to rain, the hosts managed to make 157-8 in their innings after being put into bat.
There were contributions from plenty of their line-up but no one managed to make more than wicketkeeper John Simpson's 29.
Joe Denly (25) and Dawid Malan (22) gave them a brisk start with 45 off the first eight overs before seamer Graeme McCarter, a 19-year-old Irishman making his Gloucestershire debut, took the first of his three wickets.
Left-arm spinner Ed Young then stifled Middlesex's middle-order with 3-26 in six overs, his best figures in one-day cricket. Paul Stirling was one of his victims after making a breezy 25.
Gareth Berg and Simpson put on 47 in seven overs for the seventh wicket to help the home team recover from 90-5, though their final total proved not to be enough.
Hamish Marshall gave Gloucestershire a fine start in their chase with 33 from 22 balls, putting on 53 in just six overs with Benny Howell.
Kane Williamson fell cheaply but Alex Gidman, 26 off 21 balls, and Ian Cockbain (18) made useful contributions to keep the visitors on target.
Bordeaux-born batsman Howell - who was released by Hampshire at the end of last season - remained through to the end to see his side over the line, stroking 45 off 48 balls with a six and three fours.