Hi well called up Mardon & yes I can up the value but they will only pay out what the boat is worth!
So I have gone with Boat at £8,500 may be a bit rich but made very little difference to the premium (the value was at £7000)
I can leave it on a tidal marring without chaining it up & I have also added a 2.65 Yam SIB + a Yamaha Malta fouled at £600!
Which gave me a total to pay of £241.16 not bad me thinks.
I sill think that the insurance company will knock me down on the replacement cost but if they knocked me from £7,000 I would be hard pushed to replace Like with like!