John mate - you have me drooling again with that ‘Tiger stripe’!
Yes, I believe the Sile one piece stocks were beech - never seen one but I have read/heard this before too!
Nothing wrong with Beech mind - it's a strong and dense hardwood and generally contains fewer flaws and blemishes but it's naturally lighter colour and featureless appearance often makes people prefer other hardwoods. (probably why it's often stained darker)
I have always regarded Beech as a quality hardwood but it's difficult to beat nicely figured walnut!ASM