WE ARE IN THE PROCESS OF RESANDING OUR FLOOR BOARDS AFTER ABOUT 6 MONTHS.(WIFE WANTS TO CHANGE COLOUR) I HAVE NOTICED GAPS IN BETWEEN THE PLNKS OF VARIOUS SIZES, I'VE HEARD OF GAP SEAL WHICH I AM GOING TO USE BUT THIS STILL LEAVES ALOT OF GAPS TO FILL DOES ANYONE KNOW THE BEAST SOLOUTION FOR THIS PR...