- If you like the Ibbie, upgrade it. My friend upgraded a Squier Tele with Blackguards and he is totally happy.
- If you want another guitar, I would look for a p90-equipped one, but I don't know what style you play. But a p90-loaded guitar certainly complements your singlecoil-tele and your hb-Ibbie.
- Remember that the Gretsch is made (in China) of budgetcomponents. Don't need to be a bad guitar but at this price, it cannot be topnotch material. In general I think the PRS SE Hollow P90 has better components/wood.
- Blocked off trems do affect the tone not that much, but will keep your guitar better in tune. The principal of Floyd/locking nut, the scale of the neck and the basswoodbody all contribute to the tone/lack of tone.
(I had a Jem 77 FP, that was great for heavy riffing, but for the classic stuff I play now, absolutely the wrong guitar. I like the open vibe, especially on the lower strings, of a tele or a strat. If you want one guitar that can cover nearly every style, buy a HSS-strat. Mine is loaded with a Crawler and Irish Tours. The Fender American Special HSS is decent and not too expensive. )