Hi Guy's,
Sorry,no secret method.I do use a precision pen sander,to prep the solder pad before tinning,like this:
https://www.autobodytoolmart.com/p-12832-15977.aspx.
Heres my drill,after I desolder the leads,I check to make sure they are clean,no frays,long ends,etc.
Then I sand the solder pad lightly,not much really,just rough up the surface.The Prep Pen allows you to sand just the pad,without getting the ring or anything surrounding.
Then pre-tin the pad AND make sure theres enough solder on the leads,usually apply just a dab,too much is asking for trouble.Check for fit,trim the leads a little if needed.
Tin the Iron tip,clean,then press the lead onto the pad and apply the iron just long enough to let the solder flow.
I do have a soldering station,but you can acheive great results without a station.I have some other irons,one is the kind they sell at Wallyworld,less than $20.00,yellow,dont recall the brand,it actually works well,no heat control,but your iron needs to be pretty hot anyway.
One area you can't compromise on is solder.Use Kester or another good brand from an electronics store.
And dont skimp on wire cutters either,your asking for trouble,you cant just open up the head and resolder the leads.They dont have to be expensive,just good and sharp.I picked up some at Sears just to try the other day and their actually good pliers.It was the Imperial brand,needle nose and side cutters together in a package.They werent with the Craftsman pliers,they were on another isle,they were around $10.00.
Also,tin and wipe your iron tip often,this is really important.
Thats about it,hope this helps.
Thanks,
Michael