Question 1 new to this starting late..

I'm grandpa accepting my potential bisexuality slowly. It means also that I would like to have advice and comments on wanking techniques as we are all different and nice to try some new things and hope you agree. Firstly as I'm old wanker it's surprising I haven't found out before haha. I see lots of guys using cock and balll constrictions so I have been seeing how it feels with elastic bands in place I have some photos here can someone tell me is this right or what is better please? Remember I'm nearly 70 so need to be slower haha