Bolt head airfield in Devon was a regular stop in my Saratoga, with 4 POB and (620m grass) was never problematic in the slightest - partly due to being well drained, a firm well tended runway and a pretty reliable sea breeze, and partly due to familiarity with the aircraft and short-field techniques.
On the other hand, departing Hilversham (700m grass, and not that well drained) on a still, damp day is not something that I'd be in a hurry to do again - and that was after I'd reminded the passengers that the laws on recreational drugs are not as lax in the UK as Holland, and seen 3 people head for a bin....
ILAFFT