You can always wire in a 'smartscreen' - but it's yet more money. Smartscreen

I have one on my '72 - gives me a stack of variable wiper options and also a wash/wipe option. Find it really useful, especially now I've bypassed the dash switches and installed a wiper stalk....

"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10