I've heard it said that the New Trail XL is just a Superstreak with a ram.
Maccari doesn't list either gun on his website. I've e-mailed him, but while I'm waiting thought I'd ask if anyone knows if there are any better seals out there than Crosman's replacement seals for the Superstreak .... and will it fit the following dimentions of a Trail XL

I mic-ed the bore and it's 1.140 inch ID.
Seal is showing 1.155 inch OD.
And it's .250 thick.
Tapered circular retainer on the piston is .627 at it's greatest OD.
Thanks in advance,
Paul.