knl or ton

Hi guys. Just throwing this one out there to see what others think. I have been in knl once before around 2 years ago and been in ton very briefly over last few weeks which worked out well but now i want to take a longterm position in one, im in longterm with tng heavly and also a little tipple in yrr and pls , i feel very strongly about the future of these stocks in renewables longterm. The problem is im torn between knl and ton cant decide which way to go i know buy 50/50 in both would be the logical thing to do but i just wanted to see whats others think. Im looking to put them in the bottom drawer not for trading

Thanks all.