i have stained my skirtings medium oak followed by a water based varnish both from wickes...my joiner strongly suggests using an oil based varnish as my final coat of varnish rather than the water based 1 that i have used in the 1st bedroom ive done(2 to do still) should i take his advice and go and buy some of this or is the wickes water based varnish sufficient ? surely they wouldnt sell it otherwise...if i need to purchase an oil based varnish what do you guys reccomend/where from etc cheers again 