Fellow member Steve P. should come along & be able to answer your questions. Other that a stable full of Sheridans, I only have one .20 Twanger. It is a Webley VMX that was made several years ago. It has done well after a good tuning.
Small list, but not all, of what I have to play with:- Beeman R10 .20 1989 San Rafael- Beeman R9 .20- Beeman R8 .177 1983 San Rafael- Beeman R7 .20 Huntington Beach, anniversary present from my girlfriend- Beeman R7 .177- Weihrauch HW95 .22- Diana D34K Premium .20- Diana D34 .177- 73 Silver Streak .20
I just in AOA yesterday and ordered an HW50 in .20 caliber. For me and my use, the weight, price, and power of the HW50 will be perfect. They did have a couple of special order HW95's with walnut stocks that were pretty appealing too. They were a bit pricier, but were really tempting.