Thanks for the advice
Sounds ok to mix then, i remember reading something about the viscosity mix ended up not as you would expect i.e. 10 + 15 = 12 instead of 12.5. I realised in my original post i made a typo and put 15-30 whereas it should have been 15-50 (edited the original just now). That probably explains more why i was asking, as 50 and 30 are bit more of a difference than 10 and 15.
Ye, looked into the manufacturers website and they only do 15-50 in 5 litres (£39), everything else is in quarts (£10). It would be cheaper to get the 15-50 and mix in half of 10-30.
Yep - as far as i can tell it's flat tappet (haven't had the rockers / intake off so not 100%). Don't think it's been converted to roller, i would definitely not be stressing a much about the oil if it were a roller
Working on the assumption it's flat tappet just to be safe.
Have heard of the kendall titanium before, will look into it then if WASP can get hold of it. Sounds quite price friendly in comparison!
How to post pics: When writing a message, scroll down and use the "attach file" option. Where possible, a photo sharing service can be used such as Flickr, Imgur etc. The image location (usually ending in .jpg) can be copy and pasted between the ][ brackets that appear when you click the 'Img' button (you can find this button at the top of the message box).
How to post youtube vids: Click on the 'youtubeHD' button at the top of the message box and in the middle of the ][ brackets that just appeared, copy and paste everything from the youtube web address that appears after the = sign i.e if this is the url: https://www.youtube.com/watch?v=K2cNqaPSHv0
just copy "K2cNqaPSHv0").