Affixed new black jade stone tuners with silk rongkou onto guqin

Last night: Spent about an hour. Affixed the new 黑玉石 'black jade stone' tuners with high grade silk RongKou (purchased from JunTianFang.taobao.com) onto my ZhangYong-made banana-leaf shaped guqin. I was afraid the banana leaf 'tail' of the guqin would break under stress so I pulled and tuned the guqin silk strings on my Seahorse brand hard mattress. Warning: please do not try this on a soft mattress as it may be unstable. Haha. There were some tuning problems using the old set of tuners because the nylon-polyester-cotton rongkou had the propensity to stretch just a little under high tension (not desireable). Hahaha